109-568: The Virgin Hotels Chicago (formerly Old Dearborn Bank Building or 203 North Wabash Avenue ) is a historic building in the Loop community area of Chicago , Illinois , that has been converted from use as an office building to use as a hotel run via a mobile app -based business model. The 250-room hotel is the first of Richard Branson 's Virgin Hotels brand boutique hotels geared toward
218-450: A captive portal webpage for access. Organizations, enthusiasts, authorities and businesses , such as airports, hotels, and restaurants, often provide free or paid-use hotspots to attract customers, to provide services to promote business in selected areas. Routers often incorporate a digital subscriber line modem or a cable modem and a Wi-Fi access point, are frequently set up in homes and other buildings, to provide Internet access for
327-603: A sculpture by Pablo Picasso and the state law courts. Given its proximity to government offices, the center's plaza serves as a kind of town square for celebrations, protests, and other events. The Loop is in South Chicago Township within Cook County. Townships in Chicago were abolished for governmental purposes in 1902 but are still used for property assessment. The nearby James R. Thompson Center
436-456: A channel at a time. Wi-Fi's radio bands work best for line-of-sight use. Many common obstructions, such as walls, pillars, home appliances, etc., may greatly reduce range, but this also helps minimize interference between different networks in crowded environments. The range of an access point is about 20 m (66 ft) indoors, while some access points claim up to a 150 m (490 ft) range outdoors. Hotspot coverage can be as small as
545-447: A city-wide campaign to convert old phone booths into digital kiosks in 2014. The project, titled LinkNYC , has created a network of kiosks that serve as public Wi-Fi hotspots, high-definition screens and landlines . Installation of the screens began in late 2015. The city government plans to implement more than seven thousand kiosks over time, eventually making LinkNYC the largest and fastest public, government-operated Wi-Fi network in
654-460: A common Wi-Fi version. The versions differ between the radio wavebands they operate on, the radio bandwidth they occupy, the maximum data rates they can support and other details. Some versions permit the use of multiple antennas, which permits greater speeds as well as reduced interference. Historically, the equipment listed the versions of Wi-Fi supported using the name of the IEEE standards. In 2018,
763-407: A computer and an interface controller is called a station . Stations are identified by one or more MAC addresses . Wi-Fi nodes often operate in infrastructure mode in which all communications go through a base station. Ad hoc mode refers to devices communicating directly with each other, without communicating with an access point. A service set is the set of all the devices associated with
872-641: A greater degree by common building materials than the 2.4 GHz bands and usually give a shorter range. As 802.11 specifications evolved to support higher throughput, the protocols have become much more efficient in their bandwidth use. Additionally, they have gained the ability to aggregate channels together to gain still more throughput where the bandwidth for additional channels is available. 802.11n allows for double radio spectrum bandwidth (40 MHz) per channel compared to 802.11a or 802.11g (20 MHz). 802.11n can be set to limit itself to 20 MHz bandwidth to prevent interference in dense communities. In
981-489: A hotel on January 15, 2015. The renovation took longer than planned due to the building's city landmark status, which required continuing coordination with the Commission on Chicago Landmarks. Original features that were retained include a 1920s oak cigar bar, brass elevator lobby doors and a tiled ceiling. The final layout of 250 rooms includes 40 single-room suites and 2 penthouse suites. All rooms are pet friendly. Under
1090-426: A particular Wi-Fi network. Devices in a service set need not be on the same wavebands or channels. A service set can be local, independent, extended, mesh, or a combination. Each service set has an associated identifier, a 32-byte service set identifier (SSID), which identifies the network. The SSID is configured within the devices that are part of the network. A basic service set (BSS) is a group of stations that share
1199-464: A personal vehicle at all, compared to 26.4 percent citywide and 12.6 percent regionally. The Loop is Community Area 32. In addition to the financial ( West Loop–LaSalle Street Historic District ), theatre, and jewelry ( Jewelers Row District ) districts, there are neighborhoods that are also part of the Loop community area. According to the 2010 census, 29,283 people live in the neighborhoods in or near
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#17328024345751308-410: A single carrier, whereas 802.11a, Wi-Fi 4, 5 and 6 use orthogonal frequency-division multiplexing . Channels are used half duplex and can be time-shared by multiple networks. Any packet sent by one computer is locally received by stations tuned to that channel, even if that information is intended for just one destination. Stations typically ignore information not addressed to them. The use of
1417-458: A single room with walls that block radio waves or as large as many square kilometers using many overlapping access points with roaming permitted between them. Over time, the speed and spectral efficiency of Wi-Fi have increased. As of 2019, some versions of Wi-Fi, running on suitable hardware at close range, can achieve speeds of 9.6 Gbit/s ( gigabit per second). A 1985 ruling by the U.S. Federal Communications Commission released parts of
1526-678: A wider channel for higher throughput. Countries apply their own regulations to the allowable channels, allowed users and maximum power levels within these frequency ranges. 802.11b/g/n can use the 2.4 GHz band, operating in the United States under FCC Part 15 rules and regulations. In this frequency band, equipment may occasionally suffer interference from microwave ovens, cordless telephones , USB 3.0 hubs, Bluetooth and other devices. Spectrum assignments and operational limitations are not consistent worldwide: Australia and Europe allow for an additional two channels (12, 13) beyond
1635-545: Is Chicago 's central business district and one of the city's 77 municipally recognized community areas . Located at the center of downtown Chicago on the shores of Lake Michigan , it is the second-largest business district in North America after Midtown Manhattan . The headquarters and regional offices of several global and national businesses, retail establishments, restaurants, hotels, and theaters–as well as many of Chicago's most famous attractions–are located in
1744-484: Is a mixed-use district bordered by Michigan Avenue to the west, the Chicago River to the north, Randolph Street to the south, and Lake Shore Drive to the east. It encompasses the entire Illinois Center and Lakeshore East is the latest lead-developer of the 1969 Planned Development #70, as well as separate developments like Aon Center, Prudential Plaza, Park Millennium Condominium Building, Hyatt Regency Chicago, and
1853-452: Is a section of Grant Park, opened in the summer of 2004 and features Frank Gehry 's Jay Pritzker Pavilion , Jaume Plensa 's Crown Fountain , and Anish Kapoor 's Cloud Gate sculpture along Lake Michigan . The Chicago River and its accompanying Chicago Riverwalk, which delineates the area, also provides entertainment and recreational opportunities, including the annual dyeing of the river green in honor of St. Patrick's Day . Trips down
1962-582: Is across the street. The Federal Reserve Bank of Chicago is located on LaSalle Street in the heart of the financial district. The United States Postal Service operates the Loop Station Post Office at 211 South Clark Street. The Chicago Fire Department operates 3 Fire Stations in the Loop District: Several countries maintain consulates in the Loop. They include Argentina , Australia , Canada , Costa Rica ,
2071-432: Is divided into a multitude of channels . In the standards, channels are numbered at 5 MHz spacing within a band (except in the 60 GHz band, where they are 2.16 GHz apart), and the number refers to the centre frequency of the channel. Although channels are numbered at 5 MHz spacing, transmitters generally occupy at least 20 MHz, and standards allow for neighbouring channels to be bonded together to form
2180-635: Is simply referred to as WLAN , and it may or may not work with " Wi-Fi Certified " devices. As of 2017, the Wi-Fi Alliance consisted of more than 800 companies from around the world. As of 2019, over 3.05 billion Wi-Fi-enabled devices are shipped globally each year. Wi-Fi uses multiple parts of the IEEE 802 protocol family and is designed to work seamlessly with its wired sibling, Ethernet . Compatible devices can network through wireless access points with each other as well as with wired devices and
2289-641: Is submitted for certification. The lack of Wi-Fi certification does not necessarily imply that a device is incompatible with other Wi-Fi devices. The Wi-Fi Alliance may or may not sanction derivative terms, such as Super Wi-Fi , coined by the US Federal Communications Commission (FCC) to describe proposed networking in the UHF TV band in the US. Equipment frequently supports multiple versions of Wi-Fi. To communicate, devices must use
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#17328024345752398-803: Is the city headquarters for state government, with an office for the Governor. Many state agencies have offices here, including the Illinois State Board of Education . A few blocks away is the Everett McKinley Dirksen United States Courthouse housing federal law courts and other federal government offices. This is the seat of the United States Court of Appeals for the Seventh Circuit . The Kluczynski Federal Building
2507-637: Is the most Democratically leaning district in Illinois according to the Cook Partisan Voting Index with a score of D+38 and represented by Democrat Danny K. Davis . List of United States representatives representing the Loop since 1903 Illinois's 1st congressional district (1903 – 1963): Illinois's 7th congressional district (1963–present): The Loop area derives its name from transportation networks present in it. Passenger lines reached seven Loop-area stations by
2616-742: Is the second largest commercial business district in the United States after New York City's Midtown Manhattan . Its financial district near LaSalle Street is home to United Airlines , Hyatt Hotels & Resorts, and CME Group 's Chicago Board of Trade and Chicago Mercantile Exchange . Aon Corporation maintains an office in the Aon Center . Chase Tower houses the headquarters of Exelon . United Airlines has its headquarters in Willis Tower , having moved its headquarters to Chicago from suburban Elk Grove Township in early 2007. Blue Cross and Blue Shield Association has its headquarters in
2725-417: Is used in applications such as motion detection and gesture recognition . Wi-Fi stations communicate by sending each other data packets , blocks of data individually sent and delivered over radio on various channels. As with all radio, this is done by the modulation and demodulation of carrier waves . Different versions of Wi-Fi use different techniques, 802.11b uses direct-sequence spread spectrum on
2834-455: The 2016 presidential election , the Loop cast 11,141 votes for Hillary Clinton and cast 2,148 votes for Donald Trump (79.43% to 15.31%). In the 2012 presidential election , the Loop cast 8,134 votes for Barack Obama and cast 2,850 votes for Mitt Romney (72.26% to 25.32%). In the U.S. House of Representatives , the area is wholly within Illinois's 7th congressional district , which
2943-633: The AT&;T Corporate Center . Chicago's fourth tallest building, the Aon Center , is located just south of Illinois Center . The complex is at the east end of the Loop, east of Michigan Avenue . Two Prudential Plaza is also located here, just to the west of the Aon Center. The Loop contains a wealth of outdoor sculpture, including works by Pablo Picasso , Joan Miró , Henry Moore , Marc Chagall , Magdalena Abakanowicz , Alexander Calder , and Jean Dubuffet . Chicago's cultural heavyweights, such as
3052-797: The Art Institute of Chicago , the Goodman Theatre , the Chicago Theatre , the Lyric Opera at the Civic Opera House building, and the Chicago Symphony Orchestra , are also in this area, as is the historic Palmer House Hilton hotel, found on East Monroe Street. Chicago's waterfront, which is almost exclusively recreational beach and park areas from north to south, features Grant Park in
3161-473: The Chicago City Council , which are represented by aldermen Sophia King , Byron Sigcho-Lopez , Bill Conway and Brendan Reilly . From the city's incorporation and division into wards in 1837 to 1992, the Loop as currently defined was at least partially contained within the 1st ward. From 1891 to 1992 it was entirely within the 1st ward and was coterminous with it between 1891 and 1901. It
3270-602: The Chicago River to the west and north, Lake Michigan to the east, and Roosevelt Road (12th Street) to the south is called the Loop. It took its name from a somewhat smaller area, which meant the 35 city blocks bounded on the north by Lake Street, on the west by Wells Street, on the south by Van Buren Street, and on the east by Wabash Avenue—the Union Loop formed by the 'L' in the late 1800s. Similarly, " South " and " West Loop " historically referred to areas within
3379-551: The Eduroam international authentication infrastructure. In the early 2000s, many cities around the world announced plans to construct citywide Wi-Fi networks. There are many successful examples; in 2004, Mysore (Mysuru) became India's first Wi-Fi-enabled city. A company called WiFiyNet has set up hotspots in Mysore, covering the whole city and a few nearby villages. In 2005, St. Cloud, Florida and Sunnyvale, California , became
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3488-669: The Home Insurance Building , considered the world's first skyscraper (demolished in 1931); the Chicago Board of Trade Building , a National Historic Landmark ; and Willis Tower , the world's tallest building for nearly 25 years. Some of the historic buildings in this district were instrumental in the development of towers. This area abounds in shopping opportunities, including the Loop Retail Historic District , although it competes with
3597-664: The Home Insurance Building , generally considered the world's first skyscraper, was constructed, followed by the development of the Chicago school best exemplified by such buildings as the Rookery Building in 1888, the Monadnock Building in 1891, and the Sullivan Center in 1899. Loop architecture has been dominated by skyscrapers and high-rises since early in its history. Notable buildings include
3706-652: The ISM bands for unlicensed use for communications. These frequency bands include the same 2.4 GHz bands used by equipment such as microwave ovens , and are thus subject to interference. In 1991 in Nieuwegein , the NCR Corporation and AT&T invented the precursor to 802.11, intended for use in cashier systems, under the name WaveLAN . NCR's Vic Hayes , who held the chair of IEEE 802.11 for ten years, along with Bell Labs engineer Bruce Tuch, approached
3815-615: The Illinois Senate most of the community area is in District 3, represented by Democrat Mattie Hunter , while a large part in the east is part of District 13, represented by Democrat Robert Peters , and a very small part in the west is part of District 5, represented by Democrat Patricia Van Pelt . The Loop community area has supported the Democratic Party in the past two presidential elections by large margins. In
3924-586: The Institute of Electrical and Electronics Engineers (IEEE) to create a standard and were involved in designing the initial 802.11b and 802.11a specifications within the IEEE. They have both been subsequently inducted into the Wi-Fi NOW Hall of Fame. In 1989 in Australia, a team of scientists began working on wireless LAN technology. A prototype test bed for a wireless local area network (WLAN)
4033-691: The Michigan Plaza complex. Sidley Austin has an office in the Loop. The Chicago Loop Alliance is located at 55 West Monroe, the Chicagoland Chamber of Commerce is located in an office in the Aon Center, the French-American Chamber of Commerce in Chicago has an office in 35 East Wacker , the Netherlands Chamber of Commerce in the United States is located in an office at 303 East Wacker Drive, and
4142-763: The Millennium Station , which serves as the Chicago terminal of the Metra Electric District line that goes to University Park , and LaSalle Street Station , which serves as the Chicago terminal of the Rock Island District line bound for Joliet , are in the Loop. In addition to the terminals, the Van Buren Street station and Museum Campus/11th Street station on the Electric District line are also in
4251-516: The Wi-Fi Alliance formed as a trade association to hold the Wi-Fi trademark under which most IEEE 802.11 products are sold. The major commercial breakthrough came with Apple Inc. adopting Wi-Fi for their iBook series of laptops in 1999. It was the first mass consumer product to offer Wi-Fi network connectivity, which was then branded by Apple as AirPort . This was in collaboration with
4360-853: The Wi-Fi Alliance introduced simplified Wi-Fi generational numbering to indicate equipment that supports Wi-Fi 4 ( 802.11n ), Wi-Fi 5 ( 802.11ac ) and Wi-Fi 6 ( 802.11ax ). These generations have a high degree of backward compatibility with previous versions. The alliance has stated that the generational level 4, 5, or 6 can be indicated in the user interface when connected, along with the signal strength. The most important standards affecting Wi‑Fi are: 802.11a, 802.11b, 802.11g, 802.11n ( Wi-Fi 4 ), 802.11h, 802.11i, 802.11-2007, 802.11–2012, 802.11ac ( Wi-Fi 5 ), 802.11ad, 802.11af, 802.11-2016, 802.11ah, 802.11ai, 802.11aj, 802.11aq , 802.11ax ( Wi-Fi 6 ), 802.11ay . Wi-Fi technology may be used to provide local network and Internet access to devices that are within Wi-Fi range of one or more routers that are connected to
4469-455: The 11 permitted in the United States for the 2.4 GHz band, while Japan has three more (12–14). 802.11a/h/j/n/ac/ax can use the 5 GHz U-NII band , which, for much of the world, offers at least 23 non-overlapping 20 MHz channels. This is in contrast to the 2.4 GHz frequency band where the channels are only 5 MHz wide. In general, lower frequencies have longer range but have less capacity. The 5 GHz bands are absorbed to
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4578-477: The 1830s, the area was selected as the site of their respective seats. Originally mixed-use, the neighborhood became increasingly commercial in the 1870s. This process accelerated in the aftermath of the 1871 Great Chicago Fire , which destroyed most of the neighborhood's buildings. Some of the world's earliest skyscrapers were constructed in the Loop, giving rise to the Chicago School of architecture . By
4687-473: The 1890s, with transfers from one to the other being a major business for taxi drivers prior to the advent of Amtrak in the 1970s and the majority of trains being concentrated at Chicago Union Station across the river in the Near West Side . The construction of a streetcar loop in 1882 and the elevated railway loop in the 1890s gave the area its name and cemented its dominance in the city. In Metra
4796-446: The 1920s old buildings were purchased in the area and converted to parking structures. More high-rise garages and parking lots were constructed in the 1930s, which also saw the advent of double-deck parking. The first parking meters were installed in 1947 and private garages were regulated in 1957; they were banned outright in the Loop in the 1970s in response to federal air-quality standards. The first underground garages were built by
4905-408: The 5 GHz band, 20 MHz, 40 MHz, 80 MHz, and 160 MHz channels are permitted with some restrictions, giving much faster connections. Wi-Fi is part of the IEEE 802 protocol family. The data is organized into 802.11 frames that are very similar to Ethernet frames at the data link layer, but with extra address fields. MAC addresses are used as network addresses for routing over
5014-412: The Chicago River throughout the area. Illinois Center neighborhood has three-level streets. The eastern terminus of U.S. Route 66 (US 66), an iconic highway in the United States first charted in 1926, was located at Jackson Boulevard and Michigan Avenue . When Illinois and Missouri agreed that the local signage for US 66 should be replaced with that of Interstate 55 (I-55) as
5123-488: The Chicago River, including architectural tours, by commercial boat operators, are great favorites with both locals and tourists alike. The Loop is the seat of Chicago's city government. It is also the government seat of Cook County and houses an office for the governor of Illinois . The city and county governments are situated in the same century-old building . Across the street, the Richard J. Daley Center accommodates
5232-734: The Czech Republic , Ecuador , El Salvador , France , Guatemala , Haiti , Hungary , Indonesia , Israel , the Republic of Macedonia , the Netherlands , Pakistan , Peru , the Philippines , South Africa , Turkey , and Venezuela . In addition, the Taipei Economic and Cultural Office of the Republic of China is in the Loop. The Loop is currently a part of the 4th, 25th, 34th and 42nd wards of
5341-600: The Fairmont Chicago, Millennium Park. The area has a triple-level street system and is bisected by Columbus Drive. Most of this district has been developed on land that was originally water and once used by the Illinois Central Railroad rail yards. The early buildings in this district such as the Aon Center and One Prudential Plaza used airspace rights in order to build above the railyards. The New Eastside Association of Residents (NEAR) has been
5450-463: The Fort Dearborn reservation that became part of the city in 1839 and land reclaimed from Lake Michigan. The area was bustling by the end of the 1830s. Lake Street started to be a center for retail at that time, until it was eclipsed by State Street in the 1850s. By 1948 an estimated one million people came to and went from the Loop each day. Afterwards, suburbanization caused a decrease in
5559-596: The Internet. Different versions of Wi-Fi are specified by various IEEE 802.11 protocol standards, with different radio technologies determining radio bands, maximum ranges, and speeds that may be achieved. Wi-Fi most commonly uses the 2.4 gigahertz (120 mm) UHF and 5 gigahertz (60 mm) SHF radio bands, with the 6 gigahertz SHF band used in newer generations of the standard; these bands are subdivided into multiple channels. Channels can be shared between networks, but, within range, only one transmitter can transmit on
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#17328024345755668-615: The Internet. The coverage of one or more interconnected access points can extend from an area as small as a few rooms to as large as many square kilometres. Coverage in the larger area may require a group of access points with overlapping coverage. For example, public outdoor Wi-Fi technology has been used successfully in wireless mesh networks in London. An international example is Fon . Wi-Fi provides services in private homes, businesses, as well as in public spaces. Wi-Fi hotspots may be set up either free of charge or commercially, often using
5777-594: The LAN. Wi-Fi's MAC and physical layer (PHY) specifications are defined by IEEE 802.11 for modulating and receiving one or more carrier waves to transmit the data in the infrared, and 2.4, 3.6 , 5, 6, or 60 GHz frequency bands. They are created and maintained by the IEEE LAN/MAN Standards Committee ( IEEE 802 ). The base version of the standard was released in 1997 and has had many subsequent amendments. The standard and amendments provide
5886-526: The Loop area and offer 24/7 service; the Red and Blue Lines are the only rapid transit lines in the United States west of the Appalachian Mountains to offer such service. Bus Rapid Transit has been implemented in the Loop. Chicago's address system has been standardized as beginning at the intersection of State and Madison Streets since September 1, 1909. Prior to that time, Chicago's street system
5995-606: The Loop proper, but in the 21st century began to refer to the entire Near South and much of the Near West Sides of the city, respectively. In 1803, the United States Army built Fort Dearborn in what is now the Loop; although earlier settlement was present, this was first settlement in the area sponsored by the United States' federal government . When Chicago and Cook County were incorporated in
6104-419: The Loop. The professional sector is the largest source of employment of both Loop residents and Loop employees, at respectively 21.4 and 23.3 percent. Finance was the second most common employment for both groups, at respectively 13.5 and 17.7 percent. Health Care was the third largest sector for residents at 10.2 percent while Education was the third largest sector for Loop employees at 13 percent. Education
6213-543: The Loop. 26.8 percent worked outside of Chicago. Respectively 11.5, 8.0, and 2.8 percent worked in the Near North Side , the Near West Side , and Hyde Park . Conversely, 45.5 percent of the people employed in the Loop lived outside of Chicago. Lake View housed 4 percent of Loop employees, the highest percentage of any of Chicago's community areas. The Near North Side, West Town , and Lincoln Park respectively housed 3.8, 2.6, and 2.5 percent of those working in
6322-593: The Loop. All stations in the Loop are in Zone A for fare collection purposes. The interurban South Shore Line , which goes to South Bend, Indiana , has its Chicago terminal at Millennium Station. All lines of the Chicago "L" except the Yellow Line serve the Loop area for at least some hours. The State Street Subway and Dearborn Street Subway , respectively parts of the Red Line and Blue Line , are present in
6431-410: The Loop. The neighborhood also hosts Chicago's City Hall , the seat of Cook County , offices of other levels of government, and several foreign consulates. The intersection of State Street and Madison Street in the Loop is the origin point for the address system on Chicago's street grid . The Loop's definition and perceived boundaries have developed over time. Since the 1920s, the area bounded by
6540-486: The Loop. The median sale price for residential real estate was $ 710,000 in 2005 according to Forbes. In addition to the government, financial, theatre and shopping districts, there are neighborhoods that are also part of the Loop community area. For much of its history this Section was used for Illinois Central rail yards, including the IC's Great Central Station , with commercial buildings along Michigan Avenue. The New Eastside
6649-521: The Netherlands simultaneously claim the invention of Wi-Fi, and a consensus has not been reached globally. In 2009, the Australian CSIRO was awarded $ 200 million after a patent settlement with 14 technology companies, with a further $ 220 million awarded in 2012 after legal proceedings with 23 companies. In 2016, the CSIRO's WLAN prototype test bed was chosen as Australia's contribution to
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#17328024345756758-528: The Old Dearborn Bank opened in 1928, it was acquired and its parent company was liquidated in the United States' Great Depression . The building, which is 27 stories high, was designated a Chicago Landmark on June 4, 2003. The 300-foot (91.4 m) light brown brick building with a steel structure includes 25 floors above ground and two below. The owners of the building defaulted on a $ 9 million loan from John Hancock Life Insurance resulting in
6867-743: The US Mexico Chamber of Commerce Mid-America Chapter is located in an office in One Prudential Plaza . McDonald's was headquartered in the Loop until 1971, when it moved to suburban Oak Brook . When Bank One Corporation existed, its headquarters were in the Bank One Plaza, which is now Chase Tower. When Amoco existed, its headquarters were in the Amoco Building, which is now the Aon Center. In 2019, about 40 percent of Loop residents were also employed in
6976-543: The Wi-Fi Alliance did use the advertising slogan "The Standard for Wireless Fidelity" for a short time after the brand name was created, and the Wi-Fi Alliance was also called the "Wireless Fidelity Alliance Inc." in some publications. IEEE is a separate, but related, organization and their website has stated "WiFi is a short name for Wireless Fidelity". The name Wi-Fi was partly chosen because it sounds similar to Hi-Fi , which consumers take to mean high fidelity or high quality . Interbrand hoped consumers would find
7085-413: The Wi-Fi Alliance, the term Wi-Fi was chosen from a list of ten names that Interbrand proposed. Interbrand also created the Wi-Fi logo . The yin-yang Wi-Fi logo indicates the certification of a product for interoperability . The name is often written as WiFi , Wifi , or wifi , but these are not approved by the Wi-Fi Alliance. The name Wi-Fi is not short-form for 'Wireless Fidelity', although
7194-418: The acquisition of the loan (and thus the property) for an undisclosed amount by Urban Street Properties LLC in April 2010. The building had been acquired by the previous owners for $ 9.5 million in 2001. On October 24, 2011, Virgin Hotels , part of Virgin Group , purchased the building with the aim of opening it as their first hotel in 2013 with approximately 250 rooms. The transaction was an all-cash deal that
7303-425: The area's importance. Starting in the 1960s, however, the presence of an upscale shopping district caused the area's fortunes to increase. The Loop's population has boomed in recent years, having a 158 percent population increase between 2000 and 2020. Between 2010 and 2014, the number of jobs in The Loop increased by nearly 63,000 jobs, or an increase of over 13%. The Loop, along with the rest of downtown Chicago,
7412-460: The area. 33.3 percent of Loop residents walk or bike to work compared to 7.3 percent citywide. An additional 19.4 percent of Loop residents use transit for a daily commute, while 23.4 percent of residents citywide do. Just 22.2 percent of Loop residents drive to work alone or in a carpool, compared to 54.9 percent of all Chicago residents and 72.5 percent in the greater Chicago region. By household, 47.2 percent of Loop residents do not have access to
7521-420: The auspices of the Commission on Chicago Landmarks, the renovation included brick, window and steel-frame replacement. The focal point of the renovated building is the publicly accessible Commons Club on the second floor, with a contemporary-style bar, a full kitchen, a lounge area, curated books and local memorabilia. At the time of opening, four additional dining options were expected within three months. The area
7630-605: The basis for wireless network products using the Wi-Fi brand. While each amendment is officially revoked when incorporated in the latest version of the standard, the corporate world tends to market to the revisions because they concisely denote capabilities of their products. As a result, in the market place, each revision tends to become its own standard. In addition to 802.11, the IEEE 802 protocol family has specific provisions for Wi-Fi. These are required because Ethernet's cable-based media are not usually shared, whereas with wireless all transmissions are received by all stations within
7739-481: The capability. Some laptops that have a cellular modem card can also act as mobile Internet Wi-Fi access points. Many traditional university campuses in the developed world provide at least partial Wi-Fi coverage. Carnegie Mellon University built the first campus-wide wireless Internet network, called Wireless Andrew , at its Pittsburgh campus in 1993 before Wi-Fi branding existed. Many universities collaborate in providing Wi-Fi access to students and staff through
7848-569: The channel to be idle at the same time and thus begin transmission simultaneously. A collision happens when a station receives signals from multiple stations on a channel at the same time. This corrupts the transmitted data and can require stations to re-transmit. The lost data and re-transmission reduces throughput, in some cases severely. The 802.11 standard provides several distinct radio frequency ranges for use in Wi-Fi communications: 900 MHz , 2.4 GHz, 3.6 GHz, 4.9 GHz, 5 GHz, 6 GHz and 60 GHz bands . Each range
7957-411: The chat board, provide local knowledge, and coordinate your messages with hotel staff. When asked about the operation, Virgin's Richard Branson said "There won’t be hidden charges, and you won’t get charged $ 10 for a chocolate bar you know you can buy at a store for $ 2." Branson has stated that the brand is geared toward the female business traveler. Bloomberg Business ' s Jennifer Parker noted that
8066-480: The city in the early 1950s. All residences and places of employment within the Loop are in highly walkable areas; the Chicago Metropolitan Agency for Planning defines such areas based on population density, the length of city blocks, tree canopy cover, fatalities or grievous injuries incurred by pedestrians and bicyclists in the area, the density of intersections, and amenities located near
8175-519: The database. Signal fluctuations can cause errors, which can be reduced with noise-filtering techniques. For low precision, integrating Wi-Fi data with geographical and time information has been proposed. The Wi-Fi RTT capability introduced in IEEE 802.11mc allows for positioning based on round trip time measurement, an improvement over the RSSI method. The IEEE 802.11az standard promises further improvements in geolocation accuracy. Wi-Fi sensing
8284-686: The downtown area. Grant Park is the home of Buckingham Fountain , the Petrillo Music Shell , the Grant Park Symphony (where free concerts can be enjoyed throughout the summer), and Chicago's annual two-week food festival, the Taste of Chicago , where more than 3 million people try foods from over 70 vendors. The area also hosts the annual music festival Lollapalooza which features popular alternative rock, heavy metal, EDM , hip hop, and punk rock, artists. Millennium Park , which
8393-516: The exhibition A History of the World in 100 Objects held in the National Museum of Australia . The name Wi-Fi , commercially used at least as early as August 1999, was coined by the brand-consulting firm Interbrand. The Wi-Fi Alliance had hired Interbrand to create a name that was "a little catchier than 'IEEE 802.11b Direct Sequence'." According to Phil Belanger, a founding member of
8502-522: The female business traveller. Situated at the intersection of East Lake Street and North Wabash Avenue, the Old Dearborn Bank Building was constructed between 1926 and 1928 with ornate medieval and mythological terra-cotta decoration that was typical of movie palaces that were its contemporaries. The neoclassical architecture designed building is one of only two Rapp and Rapp buildings designed as an office building . Soon after
8611-414: The first cities in the United States to offer citywide free Wi-Fi (from MetroFi ). Minneapolis has generated $ 1.2 million in profit annually for its provider . In May 2010, the then London mayor Boris Johnson pledged to have London-wide Wi-Fi by 2012. Several boroughs including Westminster and Islington already had extensive outdoor Wi-Fi coverage at that point. New York City announced
8720-462: The first hotel in Chicago, was built in 1831 near Wolf Point at what is now the northwestern corner of the Loop. When Cook County was incorporated in 1831, the first meeting of its government was held at Fort Dearborn with two representatives from Chicago and one from Naperville . The entirety of what is now the Loop was part of the Town of Chicago when it was initially incorporated in 1833, except for
8829-477: The highway was predominately north–south in those states, most signs of the former highway in Chicago were removed without incident but the final sign on the corner of Jackson and Michigan was removed with great fanfare on January 13, 1977, and replaced with a sign reading "END OF ROUTE 66". The first anti-parking ordinance of streets in the Loop was passed on May 1, 1918, in order to help streetcars, and had been advocated by Chicago Surface Lines . This law banned
8938-546: The hotel was on the cutting edge of technology upon its opening, but questioned whether the hotel had any gender leanings. She found fault with the gym, toiletries, and delayed spa opening, but enjoyed the social ambiance, the normal retail prices of minibar items (rather than more standard hotel overpricing) and the top notch free Wi-Fi . She found many of the appealing elements of the designed to be dubiously marketed, but appealing nonetheless. Chicago Tribune ' s Pulitzer Prize -winning architecture critic, Blair Kamin , praised
9047-485: The incorporation of various wildlife into the decor and numerous elements of the rehab resulting from the alliance of real estate developers and historic preservationists, but made it clear that Virgin Hotels Chicago is not the Four Seasons Hotel Chicago or Ritz-Carlton (Four Seasons) . He describes this as a successful recycling of a second-tier historic building. Chicago Loop The Loop
9156-616: The late 19th century, cable car turnarounds and the Union Loop encircled the area, giving the neighborhood its name. Near the lake, Grant Park "Chicago's front yard" is Chicago's oldest park but was significantly expanded in the late 19th and early 20th centuries and houses a number of features and museums. Starting in the 1920s, road improvements for highways were constructed to and into the Loop, perhaps most famously U.S. Route 66 , which opened in 1926. While dominated by offices and public buildings, its residential population boomed during
9265-409: The latter 20th century and first decades of the 21st, partly due to the development of former rail yards (at one time, the area had six major interurban railroad terminals and land was also needed for extensive rail cargo storage and transfer), industrial lands, as well as highrise residences. Since 1950, the Loop's population has increased the most out of all of Chicago's community areas. The origin of
9374-500: The more upscale Magnificent Mile area to the north. It includes Chicago's former Marshall Field's department store location in the Marshall Field and Company Building ; the original Sullivan Center Carson Pirie Scott store location (closed February 21, 2007). Chicago's Downtown Theatre District is also found within this area, along with numerous restaurants and hotels. Chicago has a famous skyline which features many of
9483-476: The most widely used computer networks, used globally in home and small office networks to link devices and to provide Internet access with wireless routers and wireless access points in public places such as coffee shops, hotels, libraries, and airports. Wi-Fi is a trademark of the Wi-Fi Alliance , which restricts the use of the term " Wi-Fi Certified " to products that successfully complete interoperability certification testing. Non-compliant hardware
9592-435: The name "the Loop" is disputed. Some sources claim it first referred to two cable car lines that used a circuit–constructed in 1882 and bounded by Van Buren Street, Wabash Avenue, Wells Street , and Lake Street –to enter and depart the downtown area. Other research, however, has concluded that "the Loop" was not used as a proper noun until after the 1895–97 construction of the Union Loop used by 'L' trains, which shared
9701-452: The name catchy, and that they would assume this wireless protocol has high fidelity because of its name. Other technologies intended for fixed points, including Motorola Canopy , are usually called fixed wireless . Alternative wireless technologies include Zigbee , Z-Wave , Bluetooth and mobile phone standards . To connect to a Wi-Fi LAN, a computer must be equipped with a wireless network interface controller . The combination of
9810-425: The parking of any vehicle between 7 and 10 a.m. and 4 and 7 p.m. on a street used by streetcars; approximately 1,000 violators of this law were arrested in the first month of the ordinance's enforcement. The La Salle Hotel 's parking garage was the first high-rise parking garage in the Loop, constructed in 1917 at the corner of Washington and LaSalle Streets and remaining in service until its demolition in 2005. In
9919-566: The project, which was to be completed in 2015. Wi-Fi positioning systems use known positions of Wi-Fi hotspots to identify a device's location. It is used when GPS isn't suitable due to issues like signal interference or slow satellite acquisition. This includes assisted GPS , urban hotspot databases, and indoor positioning systems. Wi-Fi positioning relies on measuring signal strength ( RSSI ) and fingerprinting. Parameters like SSID and MAC address are crucial for identifying access points. The accuracy depends on nearby access points in
10028-551: The range that employ that radio channel. While Ethernet has essentially negligible error rates, wireless communication media are subject to significant interference. Therefore, the accurate transmission is not guaranteed so delivery is, therefore, a best-effort delivery mechanism. Because of this, for Wi-Fi, the Logical Link Control (LLC) specified by IEEE 802.2 employs Wi-Fi's media access control (MAC) protocols to manage retries without relying on higher levels of
10137-504: The receiver uses the destination address to determine whether the transmission is relevant to the station or should be ignored. A scheme known as carrier-sense multiple access with collision avoidance (CSMA/CA) governs the way stations share channels. With CSMA/CA stations attempt to avoid collisions by beginning transmission only after the channel is sensed to be idle, but then transmit their packet data in its entirety. CSMA/CA cannot completely prevent collisions, as two stations may sense
10246-442: The recognized community representative (Illinois non-profit corporation) since 1991 and is a 501(c)(3) IRS tax-exempt organization. Wi-Fi Wi-Fi ( / ˈ w aɪ f aɪ / ) is a family of wireless network protocols based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet access, allowing nearby digital devices to exchange data by radio waves . These are
10355-400: The same channel also means that the data bandwidth is shared, so for example, available throughput to each device is halved when two stations are actively transmitting. As with other IEEE 802 LANs, stations come programmed with a globally unique 48-bit MAC address. The MAC addresses are used to specify both the destination and the source of each data packet. On the reception of a transmission,
10464-411: The same group that helped create the standard: Vic Hayes , Bruce Tuch, Cees Links , Rich McGinn, and others from Lucent . In the year 2000, Radiata, a group of Australian scientists connected to the CSIRO, were the first to use the 802.11a standard on chips connected to a Wi-Fi network. Wi-Fi uses a large number of patents held by many different organizations. Australia, the United States and
10573-429: The same route. In what is now the Loop, on the south bank of the Chicago River near today's Michigan Avenue Bridge , the United States Army erected Fort Dearborn in 1803, the first settlement in the area sponsored by the United States. When Chicago was initially platted in 1830 by the surveyor James Thompson , it included what is now the Loop north of Madison Street and west of State Street. The Sauganash Hotel ,
10682-515: The same wireless channel, SSID, and other settings that have wirelessly connected, usually to the same access point. Each BSS is identified by a MAC address called the BSSID . The IEEE does not test equipment for compliance with their standards. The Wi-Fi Alliance was formed in 1999 to establish and enforce standards for interoperability and backward compatibility , and to promote wireless local-area-network technology. The Wi-Fi Alliance enforces
10791-445: The structure. Similarly, battery-powered routers may include a mobile broadband modem and a Wi-Fi access point. When subscribed to a cellular data carrier, they allow nearby Wi-Fi stations to access the Internet. Many smartphones have a built-in mobile hotspot capability of this sort, though carriers often disable the feature, or charge a separate fee to enable it. Standalone devices such as MiFi - and WiBro -branded devices provide
10900-704: The tallest buildings in the world as well as the Chicago Landmark Historic Michigan Boulevard District . Chicago's skyline is spaced out throughout the downtown area. The Willis Tower , formerly known as the Sears Tower, the third tallest building in the Western Hemisphere (and still second-tallest by roof height), stands in the western Loop in the heart of the city's financial district, along with other buildings, such as 311 South Wacker Drive and
11009-762: The use of the Wi-Fi brand to technologies based on the IEEE 802.11 standards from the IEEE. Manufacturers with membership in the Wi-Fi Alliance, whose products pass the certification process, gain the right to mark those products with the Wi-Fi logo. Specifically, the certification process requires conformance to the IEEE 802.11 radio standards, the WPA and WPA2 security standards, and the EAP authentication standard. Certification may optionally include tests of IEEE 802.11 draft standards, interaction with cellular-phone technology in converged devices, and features relating to security set-up, multimedia, and power-saving. Not every Wi-Fi device
11118-483: The western half is part of the 2nd district, represented by Democrat Dennis Deer . In the Illinois House of Representatives the community area is roughly evenly split lengthwise between, from east to west, Districts 26, 5, and 6, represented respectively by Democrats Kambium Buckner , Lamont Robinson , and Sonya Harper , with a minuscule portion in District 9 represented by Democrat Lakesia Collins . In
11227-639: The world. The UK has planned a similar project across major cities of the country, with the project's first implementation in the London Borough of Camden . Officials in South Korea's capital Seoul were moving to provide free Internet access at more than 10,000 locations around the city, including outdoor public spaces, major streets, and densely populated residential areas. Seoul was planning to grant leases to KT, LG Telecom, and SK Telecom. The companies were supposed to invest $ 44 million in
11336-421: Was a hodgepodge of various systems which had resulted from the different municipalities that Chicago annexed in the late 19th century. The implementation of the new street system was delayed by two years in the Loop to allow businesses more time to acclimate to their new addresses. Several streets in the Loop have multiple levels , some as many as three. The most prominent of these is Wacker Drive , which faces
11445-448: Was carved out of a former second-floor banking hall. The visitors use a mobile app, named Lucy, that the company describes as a "personal comfort assistant". According to Mary Forgione of The Los Angeles Times , the app can order more pillows, handle room service orders, and serve as a remote control for both the television and the hotel's music library. The website also suggests that the app can control room temperature, interface with
11554-573: Was developed in 1992 by a team of researchers from the Radiophysics Division of the CSIRO (Commonwealth Scientific and Industrial Research Organisation) in Australia, led by John O'Sullivan . A patent for Wi Fi was lodged by the CSIRO in 1992 The first version of the 802.11 protocol was released in 1997, and provided up to 2 Mbit/s link speeds. This was updated in 1999 with 802.11b to permit 11 Mbit/s link speeds. In 1999,
11663-469: Was the fourth largest employer of residents at 9.4 percent while Public Administration was the fourth largest for Loop employees at 13 percent. Administration was the fifth largest sector for both groups, at respectively 6.9 and 7.3 percent. The area has long been a hub for architecture. The vast majority of the area was destroyed by the Great Chicago Fire in 1871 but rebuilt quickly. In 1885
11772-515: Was valued at about $ 14 million. The company hired The John Buck Company to renovate the building. The lead architect for the renovation was Booth Hansen. The co-designers for the interior renovation were Rockwell Group Europe and Virgin Hotels' in-house design team. The purchase was part of Virgin Hotels' 2010 business plan to acquire distressed properties in North America cheaply during the property downturn. The building opened for business as
11881-543: Was while part of the 1st ward that it was represented by the Gray Wolves. The area has not had a Republican alderman since Francis P. Gleason served alongside Coughlin from 1895 to 1897. (Prior to 1923, each ward elected two aldermen in staggered two-year terms). In the Cook County Board of Commissioners the eastern half of the area is part of the 3rd district, represented by Democrat Jerry Butler , while
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