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Multichannel multipoint distribution service

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Multichannel multipoint distribution service ( MMDS ), formerly known as broadband radio service ( BRS ) and also known as wireless cable , is a wireless telecommunications technology, used for general-purpose broadband networking or, more commonly, as an alternative method of cable television programming reception.

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96-503: MMDS is used in Australia, Barbados , Belarus , Bolivia , Brazil, Cambodia , Canada, Czech Republic , Dominican Republic , Iceland , India, Kazakhstan , Kyrgyzstan , Lebanon , Mexico, Nepal , Nigeria, Pakistan, Panama , Portugal (including Madeira ), Russia, Slovakia , Sri Lanka , Sudan , Thailand , Ukraine, United States, Uruguay and Vietnam . It is most commonly used in sparsely populated rural areas, where laying cables

192-470: A cholera epidemic killed more than 20,000 inhabitants. Deep dissatisfaction with the situation on Barbados led many to emigrate. Things came to a head in the 1930s during the Great Depression , as Barbadians began demanding better conditions for workers, the legalisation of trade unions and a widening of the franchise, which at that point was limited to male property owners. As a result of

288-569: A Constitutional Review Commission was formed and sworn in by Jeffrey Gibson (who at the time was serving temporarily as Acting President of Barbados) to review the Constitution of Barbados. The commission was given a 15-month timeline to complete its work, which included consulting the public about the new republic and drafting a constitution. Thus, the CRC engaged the public in a number of public meetings, lectures, and Twitter Spaces . The report

384-399: A copy of the same key. If it is an asymmetric key cipher with the public/private key property, both will need the other's public key. Key exchange is done either in-band or out-of-band. The key exchange problem describes ways to exchange whatever keys or other information are needed for establishing a secure communication channel so that no one else can obtain a copy. Historically, before

480-552: A county of England". Expressly named were "Wiltshire, Hampshire, Berkshire and Bimshire". Lastly, in the Daily Argosy (of Demerara, i.e. Guyana) of 1652, there is a reference to Bim as a possible corruption of "Byam", the name of a Royalist leader against the Parliamentarians. That source suggested the followers of Byam became known as "Bims" and that this became a word for all Barbadians. Around 700,000 years ago,

576-512: A few analogue channels. The MMDS frequency range extends from 2500 to 2684 MHz for a total of 23 (21 of which are considered usable for broadcasting in Iceland) 8 MHz channels. Analogue MMDS broadcasting began in 1993, moving to digital in 2004. In Brazil, the shutdown of the MMDS technology started in 2012 to release the frequency for the 2500–2600 MHz LTE-UTRAN band, which would make

672-464: A few government departments, have established such certificate authorities. This does nothing to solve the problem though, as the trustworthiness of the CA itself is still not guaranteed for any particular individual. It is a form of argument from authority fallacy. For actual trustworthiness, personal verification that the certificate belongs to the CA and establishment of trust in the CA are required. This

768-400: A large investment and a great deal of heavy labour. At first, Dutch traders supplied the equipment, financing, and African slaves, in addition to transporting most of the sugar to Europe. In 1644 the population of Barbados was estimated at 30,000, of which about 800 were of African ancestry, with the remainder mainly of English ancestry. These English smallholders were eventually bought out and

864-452: A practice that came to be known as being Barbadosed . Cultivation of sugar was thus handled primarily by European indentured labour until it became difficult to bring more indentured servants from England. Parish registers from the 1650s show that, for the white population, there were four times as many deaths as marriages. The mainstay of the infant colony's economy was the growth export of tobacco, but tobacco prices eventually fell in

960-671: A precursor to the First Anglo-Dutch War . The Commonwealth of England sent an invasion force under the command of Sir George Ayscue , which arrived in October 1651. Ayscue, with a smaller force that included Scottish prisoners, surprised a larger force of Royalists, but had to resort to spying and diplomacy ultimately. On 11 January 1652, the Royalists in the House of Assembly led by Lord Willoughby surrendered, which marked

1056-409: A rate of about 25 mm (1 in) per 1,000 years. This subduction means geologically the island is composed of coral roughly 90 m (300 ft) thick, where reefs formed above the sediment. The land slopes in a series of "terraces" in the west and goes into an incline in the east. A large proportion of the island is circled by coral reefs . The erosion of limestone in the northeast of

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1152-415: A reputation for cruelty. The decreased appeal of an indenture on Barbados, combined with enormous demand for labour caused by sugar cultivation, led to the use of involuntary transportation to Barbados as a punishment for crimes, or for political prisoners, and also to the kidnapping of labourers who were deported to Barbados. Irish indentured servants were a significant portion of the population throughout

1248-509: A standard DOCSIS cable modem connected to the same antenna and transceiver. The MMDS band is separated into 33 (31 in USA) 6 MHz "channels", which may be licensed to cable companies offering service in different areas of a country. The concept was to allow entities to own several channels and multiplex several television, radio, and later Internet data onto each channel using digital technology. Just like with digital cable channels, each channel

1344-538: A two-key system, consisting of the public and the private keys, where messages are encrypted with one key and decrypted with another. It depends on the selected cryptographic algorithm which key—public or private—is used for encrypting messages, and which for decrypting. For example, in RSA , the private key is used for decrypting messages, while in the Digital Signature Algorithm (DSA), the private key

1440-545: A variety of investment scams that still surface today. Frequent solicitations of wireless cable fraud schemes were often heard on talk radio shows like The Sonny Bloch Show in the mid-1990s. Several US telephone companies attempted television services via this system in the mid-1990s – the Tele-TV venture of Bell Atlantic , NYNEX and Pacific Bell ; and the rival Americast consortium of Ameritech , BellSouth , SBC , SNET and GTE . The Tele-TV operation

1536-399: Is 80 years. The average life expectancy is 83 years for females and 79 years for males (2020). Barbados and Japan have the highest per capita occurrences of centenarians in the world. Key exchange Key exchange (also key establishment ) is a method in cryptography by which cryptographic keys are exchanged between two parties, allowing use of a cryptographic algorithm . If

1632-773: Is an island country in the Lesser Antilles of the West Indies , in the Caribbean region next to North America and north of South America , and is the most easterly of the Caribbean islands. It lies on the boundary of the South American and Caribbean plates. Its capital and largest city is Bridgetown . Inhabited by Kalinago people since the 13th century, and prior to that by other Indigenous peoples , Spanish navigators took possession of Barbados in

1728-415: Is around 15% of the total land area, equivalent to 6,300 hectares (ha) of forest in 2020, which was unchanged from 1990. In 2020, naturally regenerating forest covered 6,300 hectares (ha) and planted forest covered 0 hectares (ha). Of the naturally regenerating forest 0% was reported to be primary forest (consisting of native tree species with no clearly visible indications of human activity) and around 5% of

1824-507: Is being deployed for use as wireless high-speed Internet access , mostly in rural areas where other types of high-speed internet are either unavailable (such as cable or DSL ) or prohibitively expensive (such as satellite internet). CommSPEED is a major vendor in the US market for BRS-based internet. AWI Networks (formerly Sky-View Technologies) operates a number of MMDS sites delivering high-speed Internet, VoIP telephone, and digital TV services in

1920-438: Is capable of 30.34 Mbit/s with 64QAM modulation, and 42.88 Mbit/s with 256QAM modulation. Due to forward error correction and other overhead, actual throughput is around 27 Mbit/s for 64QAM and 38 Mbit/s for 256QAM. The newer BRS Band Plan makes changes to channel size and licensing in order to accommodate new WIMAX TDD fixed and mobile equipment, and reallocated frequencies between 2150 and 2162 MHz to

2016-517: Is known as DOCSIS+ . Data-transport security is accomplished under BRS by encrypting traffic flows between the broadband wireless modem and the WMTS (wireless modem termination system) located in the base station of the provider's network using Triple DES . DOCSIS+ reduces theft-of-service vulnerabilities under BRS by requiring that the WMTS enforce encryption , and by employing an authenticated client/server key-management protocol in which

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2112-413: Is monitoring that communication channel. The D–H key exchange protocol, however, does not by itself address authentication (i.e. the problem of being sure of the actual identity of the person or 'entity' at the other end of the communication channel). Authentication is crucial when an opponent can both monitor and alter messages within the communication channel (AKA man-in-the-middle or MITM attacks) and

2208-524: Is not a trivial or easily solved problem, particularly when the two users involved have never met and know nothing about each other. In 1976, Whitfield Diffie and Martin Hellman published a cryptographic protocol called the Diffie–Hellman key exchange (D–H) based on concepts developed by Hellman's PhD student Ralph Merkle . The protocol enables users to securely exchange secret keys even if an opponent

2304-466: Is not economically viable, although some companies have also offered MMDS services in urban areas, most notably in Ireland, until they were phased out in 2016. The BRS band uses microwave frequencies from 2.3 to 2.5 GHz . Reception of BRS-delivered television and data signals is done with a rooftop microwave antenna . The antenna is attached to a down-converter or transceiver to receive and transmit

2400-562: Is ranked as one of its leading tourist destinations. The name "Barbados" is from either the Portuguese term os barbados or the Spanish equivalent, los barbados , both meaning "the bearded ones". It is unclear whether "bearded" refers to the long, hanging roots of the bearded fig-tree ( Ficus citrifolia ), a species of banyan indigenous to the island, or to the allegedly bearded Kalinago (Island Caribs) who once inhabited

2496-506: Is safe, unless the CA itself is compromised. In case it is, though, many PKIs provide a way to revoke certificates so other users will not trust them. Revoked certificates are usually put in certificate revocation lists which any certificate can be matched against. Several countries and other jurisdictions have passed legislation or issued regulations encouraging PKIs by giving (more or less) legal effect to these digital certificates (see digital signature ). Many commercial firms, as well as

2592-412: Is that it requires a secret key to be communicated through trusted couriers , diplomatic bags , or any other secure communication channel . If two parties cannot establish a secure initial key exchange, they won't be able to communicate securely without the risk of messages being intercepted and decrypted by a third party who acquired the key during the initial key exchange. Public-key cryptography uses

2688-403: Is the first land east of Barbados according to the belief of the locals. The country generally experiences two seasons, one of which includes noticeably higher rainfall. Known as the " wet season ", this period runs from June to December. By contrast, the " dry season " runs from December to May. Annual precipitation ranges between 1,000 and 2,300 mm (40 and 90 in). From December to May

2784-461: Is uncertain which European nation arrived first in Barbados, which probably would have been at some point in the 15th century or 16th century. One lesser-known source points to earlier revealed works antedating contemporary sources, indicating it could have been the Spanish. Many, if not most, believe the Portuguese , en route to Brazil, were the first Europeans to come upon the island. The island

2880-579: Is uncertain, but several theories exist. The National Cultural Foundation of Barbados says that "Bim" was a word commonly used by slaves , and that it derives from the Igbo term bém from bé mụ́ meaning "my home, kindred, kind"; the Igbo phoneme [e] in the Igbo orthography is very close to / ɪ / . The name could have arisen due to the relatively large percentage of Igbo slaves from modern-day southeastern Nigeria arriving in Barbados in

2976-484: Is used for authenticating them. The public key can be sent over non-secure channels or shared in public; the private key is only available to its owner. Known as the Diffie-Hellman key exchange, the encryption key can be openly communicated as it poses no risk to the confidentiality of encrypted messages. One party exchanges the keys to another party where they can then encrypt messages using the key and send back

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3072-591: Is usually not possible. There are known cases where authoritarian governments proposed establishing so-called “national CAs” whose certificates would be mandatory to install on citizens’ devices and, once installed and trusted, could be used for monitoring, intercepting, modifying, or blocking the encrypted internet traffic. For those new to such things, these arrangements are best thought of as electronic notary endorsements that “this public key belongs to this user”. As with notary endorsements, there can be mistakes or misunderstandings in such vouchings. Additionally,

3168-417: The 2008 Barbadian general election , but the new Prime Minister David Thompson died in 2010 and was replaced by Freundel Stuart . The BLP returned to power in 2018 under Mia Mottley , who became Barbados's first female prime minister. The Government of Barbados announced on 15 September 2020 that it intended to become a republic by 30 November 2021, the 55th anniversary of its independence, resulting in

3264-666: The Barbados Labour Party (BLP) in 1938. He became the first Premier of Barbados in 1953, followed by fellow BLP-founder Hugh Gordon Cummins from 1958 to 1961. A group of left-leaning politicians who advocated swifter moves to independence broke off from the BLP and founded the Democratic Labour Party (DLP) in 1955. The DLP subsequently won the 1961 Barbadian general election and their leader Errol Barrow became premier. Full internal self-government

3360-816: The House of Assembly in 1639, in an effort to appease the planters, who might otherwise have opposed his controversial appointment. In the period 1640–1660, the West Indies attracted more than two-thirds of the total number of English emigrants to the Americas. By 1650, there were 44,000 settlers in the West Indies, as compared to 12,000 on the Chesapeake and 23,000 in New England . Most English arrivals were indentured. After five years of labour, they were given "freedom dues" of about £10, usually in goods. Before

3456-582: The Main Development Region for tropical cyclone activity in the Atlantic, and is often spared the worst effects of the region's storms during the rainy season. On average, a major hurricane makes landfall in Barbados about once every 26 years. The last significant hit from a hurricane to cause severe damage to Barbados was Hurricane Janet in 1955; in 2010 the island was struck by Hurricane Tomas , but this caused only minor damage across

3552-575: The OpenPGP Internet Standard) employ just such a web of trust mechanism. Password-authenticated key agreement algorithms can perform a cryptographic key exchange utilizing knowledge of a user's password . Quantum key distribution exploits certain properties of quantum physics to ensure its security. It relies on the fact that observations (or measurements ) of a quantum state introduces perturbations in that state. Over many systems, these perturbations are detectable as noise by

3648-565: The Pre-Columbian era was Ichirouganaim , according to accounts by descendants of the Indigenous Arawakan -speaking tribes in other regional areas, with possible translations including "Red land with white teeth" or "Redstone island with teeth outside (reefs)" or simply "Teeth". Colloquially, Barbadians refer to their home island as "Bim" or other nicknames associated with Barbados, including "Bimshire". The origin

3744-476: The Sahara Desert . Some particularly intense dust episodes have been blamed partly for the impacts on the health of coral reefs surrounding Barbados or asthmatic episodes, but evidence has not wholly supported the former claim. Access to biocapacity in Barbados is much lower than world average. In 2016, Barbados had 0.17 global hectares of biocapacity per person within its territory, much less than

3840-652: The 1630s as Chesapeake production expanded. Around the same time, fighting during the War of the Three Kingdoms and the Interregnum spilled over into Barbados and Barbadian territorial waters. The island was not involved in the war until after the execution of Charles I , when the island's government fell under the control of Royalists (ironically the Governor, Philip Bell, remaining loyal to Parliament while

3936-575: The 1650s, this estimate is "quite likely exaggerated". Another estimate that 12,000 Irish prisoners had arrived in Barbados by 1655 has been described as "probably exaggerated" by historian Richard B. Sheridan. According to historian Thomas Bartlett , it is "generally accepted" that approximately 10,000 Irish were deported to the West Indies and approximately 40,000 came as voluntary indentured servants, while many also travelled as voluntary, un-indentured emigrants. The introduction of sugar cane from Dutch Brazil in 1640 completely transformed society,

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4032-631: The 18th century. The words "Bim" and "Bimshire" are recorded in the Oxford English Dictionary and Chambers Twentieth Century Dictionaries . Another possible source for "Bim" is reported to be in the Agricultural Reporter of 25 April 1868, where the Rev. N. Greenidge (father of one of the island's most famous scholars, Abel Hendy Jones Greenidge ) suggested that Bimshire was "introduced by an old planter listing it as

4128-510: The 21st century, a second treatment plant has been proposed along the island's west coast. Being so densely populated, Barbados has made great efforts to protect its underground aquifers . As a coral-limestone island, Barbados is highly permeable to seepage of surface water into the earth. The government has placed great emphasis on protecting the catchment areas that lead directly into the huge network of underground aquifers and streams. On occasion illegal squatters have breached these areas, and

4224-520: The AWS band. These changes may not be compatible with the frequencies and channel sizes required for operating traditional MMDS or DOCSIS based equipment. MMDS has been used to provide internet access. Local multipoint distribution service (LMDS) and BRS have adapted the DOCSIS (Data Over Cable Service Interface Specification) from the cable modem world. The version of DOCSIS modified for wireless broadband

4320-519: The BLP under Tom Adams . Adams adopted a more conservative and strongly pro-Western stance, allowing the Americans to use Barbados as the launchpad for their invasion of Grenada in 1983. Adams died in office in 1985 and was replaced by Harold Bernard St. John ; however, St. John lost the 1986 Barbadian general election , which saw the return of the DLP under Errol Barrow, who had been highly critical of

4416-638: The Barbadian House of Assembly , under the influence of Humphrey Walrond, supported Charles II ). To try to bring the recalcitrant colony to heel, the Commonwealth Parliament passed an act on 3 October 1650 prohibiting trade between England and Barbados, and because the island also traded with the Netherlands, further Navigation Acts were passed, prohibiting any but English vessels trading with Dutch colonies . These acts were

4512-601: The Coastal Zone Management Unit (CZMU). Barbados has nearly 90 kilometres (56 miles) of coral reefs just offshore and two protected marine parks have been established off the west coast. Overfishing is another threat which faces Barbados. Although on the opposite side of the Atlantic, and some 4,800 kilometres (3,000 miles) west of Africa, Barbados is one of many places in the American continent that experience heightened levels of mineral dust from

4608-466: The Southwestern U.S. In 2010, AWI began upgrading its infrastructure to DOCSIS 3.0 hardware, along with new microwave transmission equipment, allowing higher modulation rates like 256QAM. This has enabled download speeds in excess of 100 Mbit/s, over distances up to 35 miles (56 km) from the transmission site. In the early days of MMDS, it was known as "wireless cable" and was used in

4704-469: The US intervention in Grenada. Barrow, too, died in office, and was replaced by Lloyd Erskine Sandiford , who remained Prime Minister until 1994. Owen Arthur of the BLP won the 1994 Barbadian general election , remaining prime minister until 2008. Arthur was a strong advocate of republicanism, though a planned referendum to replace Queen Elizabeth as Head of State in 2008 never took place. The DLP won

4800-494: The WMTS controls distribution of keying material to broadband wireless modems. LMDS and BRS wireless modems utilize the DOCSIS+ key-management protocol to obtain authorization and traffic encryption material from a WMTS, and to support periodic reauthorization and key refresh. The key-management protocol uses X.509 digital certificates, RSA public-key encryption , and Triple DES encryption to secure key exchanges between

4896-667: The West Indian islands of Saint Kitts, Nevis, Saint Martin, and Barbados. It was introduced to the West Indies in the late 17th century when slave trade ships travelled to the Caribbean from West Africa. The green monkey is considered a very curious and mischievous/troublesome animal by locals. The 2010 national census conducted by the Barbados Statistical Service reported a resident population of 277,821, of which 144,803 were female and 133,018 were male. The life expectancy for Barbados residents as of 2020

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4992-575: The average temperatures range from 21 to 31 °C (70 to 88 °F), while between June and November, they range from 23 to 31 °C (73 to 88 °F). On the Köppen climate classification scale, much of Barbados is regarded as a tropical monsoon climate (Am). However, breezes of 12 to 16 km/h (7 to 10 mph) abound throughout the year and give Barbados a climate which is moderately tropical. Infrequent natural hazards include earthquakes, landslips , and hurricanes . Barbados lies outside

5088-468: The cipher text. Only the decryption key—in this case, it's the private key—can decrypt that message. At no time during the Diffie-Hellman key exchange is any sensitive information at risk of compromise, as opposed to symmetrical key exchange. In principle, the only remaining problem was to be sure (or at least confident) that a public key actually belonged to its supposed owner. Because it is possible to ' spoof ' another's identity in any of several ways, this

5184-519: The concessions for TV broadcast and shut down its MMDS pay TV services in 2014 after 25 years of service. In Ireland, since 1990, UPC Ireland (previously Chorus and NTL Ireland ) offered MMDS TV services almost nationwide. The frequency band initially allocated was 2500–2690 MHz (the "2.6 GHz band") consisting of 22–23 analogue 8 MHz channels; digital TV was restricted to 2524–2668 MHz, consisting of 18 digital 8 MHz channels. Two digital TV standards were used: DVB-T / MPEG-2 in

5280-603: The countries of Saint Lucia and Saint Vincent and the Grenadines ; 180 km (110 mi) south-east of Martinique and 400 km (250 mi) north-east of Trinidad and Tobago . It is flat in comparison to its island neighbours to the west, the Windward Islands . The island rises gently to the central highland region known as Scotland District, with the highest point being Mount Hillaby 340 m (1,120 ft) above sea level. In Barbados forest cover

5376-498: The country as it was only at Tropical Storm strength at the time of impact. Barbados is susceptible to environmental pressures. As one of the world's most densely populated isles , the government worked during the 1990s to aggressively integrate the growing south coast of the island into the Bridgetown Sewage Treatment Plant to reduce contamination of offshore coral reefs. As of the first decade of

5472-469: The country became the Queen of Barbados . The monarch then was represented locally by a governor-general . The Barrow government sought to diversify the economy away from agriculture, seeking to boost industry and the tourism sector. Barbados was also at the forefront of regional integration efforts, spearheading the creation of CARIFTA and CARICOM . The DLP lost the 1976 Barbadian general election to

5568-636: The economy and the physical landscape. Barbados eventually had one of the world's biggest sugar industries. One group instrumental in ensuring the early success of the industry was the Sephardic Jews , who had originally been expelled from the Iberian peninsula , to end up in Dutch Brazil . As the effects of the new crop increased, so did the shift in the ethnic composition of Barbados and surrounding islands. The workable sugar plantation required

5664-576: The end of royalist privateering as a major threat. The conditions of the surrender were incorporated into the Charter of Barbados ( Treaty of Oistins ), which was signed at the Mermaid's Inn, Oistins , on 17 January 1652. Starting with Cromwell , a large percentage of the white labourer population were indentured servants and involuntarily transported people from Ireland. Irish servants in Barbados were often treated poorly, and Barbadian planters gained

5760-772: The existing MMDS licences expire, new rights of use can issue on a service- and technology-neutral basis (by means of new licences). As a result, holders of the new rights of use may choose to provide any service capable of being delivered using 2.6 GHz spectrum. For instance, they could distribute television programming content, subject to complying with the relevant technical conditions and with any necessary broadcasting content authorisations, or they could adopt some other use. In Iceland, since November 2006, Vodafone Iceland runs Digital Ísland (Digital Iceland) – the broadcasting system for 365 (previously operated by 365 Broadcast Media). Digital Ísland offers digital MMDS television services using DVB-T technology alongside

5856-717: The first president of Barbados , and was subsequently elected on 20 October. Mason took office on 30 November 2021. Prince Charles , the heir apparent to the Barbadian Crown at the time, attended the swearing-in ceremony in Bridgetown at the invitation of the Government of Barbados. Queen Elizabeth sent a message of congratulations to President Mason and the people of Barbados, saying: "As you celebrate this momentous day, I send you and all Barbadians my warmest good wishes for your happiness, peace and prosperity in

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5952-419: The forest area was found within protected areas. For the year 2015, 1% of the forest area was reported to be under public ownership , 0% private ownership and 99% with ownership listed as other or unknown. In the parish of Saint Michael lies Barbados's capital and main city, Bridgetown , containing one third of the country's population. Other major towns scattered across the island include Holetown , in

6048-471: The future." A survey that was conducted between 23 October 2021 and 10 November 2021, by the University of the West Indies showed 34% of respondents being in favour of transitioning to a republic, while 30% were indifferent. Notably, no overall majority was found in the survey; with 24% not indicating a preference and the remaining 12% being opposed to the removal of Queen Elizabeth. On 20 June 2022,

6144-411: The government has removed squatters to preserve the cleanliness of the underground springs which provide the island's drinking water. The government has placed a huge emphasis on keeping Barbados clean with the aim of protecting the environment and preserving offshore coral reefs which surround the island. Many initiatives to mitigate human pressures on the coastal regions of Barbados and seas come from

6240-570: The increasing unrest the British sent a commission, called the West Indies Royal Commission, or Moyne Commission , in 1938, which recommended enacting many of the requested reforms on the islands. As a result, Afro-Barbadians began to play a much more prominent role in the colony's politics, with universal suffrage being introduced in 1950. Prominent among these early activists was Grantley Herbert Adams , who helped found

6336-460: The invention of public-key cryptography (asymmetrical cryptography), symmetric-key cryptography utilized a single key to encrypt and decrypt messages. For two parties to communicate confidentially, they must first exchange the secret key so that each party is able to encrypt messages before sending, and decrypt received ones. This process is known as the key exchange. The overarching problem with symmetrical cryptography, or single-key cryptography,

6432-538: The island c.  1600 BC . More permanent Amerindian settlement of Barbados dates to about the 4th to 7th centuries AD, by a group known as the Saladoid -Barrancoid. Settlements of Arawaks from South America appeared by around 800 AD and again in the 12th–13th century. The Kalinago (called " Caribs " by the Spanish) visited the island regularly, although there is no evidence of permanent settlement. It

6528-414: The island emerged from the ocean as a body of soft rock known as a diapir rose from the mantle beneath its present-day location. This process is still ongoing, raising Barbados at an average rate of 30 centimeters per thousand years. Dozens of inland sea reefs still dominate coastal features within terraces and cliffs on the island. Archeological evidence suggests humans may have first settled or visited

6624-592: The island filled up with large sugar plantations worked by African slaves. By 1660 there was near parity with 27,000 Black people and 26,000 White people. By 1666 at least 12,000 white smallholders had been bought out, died, or left the island, many choosing to emigrate to Jamaica or the American Colonies (notably the Carolinas). As a result, Barbados enacted a slave code as a way of legislatively controlling its enslaved Black population. The law's text

6720-644: The island in the name of King James I . In 1627, the first permanent settlers arrived from England, and Barbados became an English and later British colony . During this period, the colony operated on a plantation economy , relying on the labour of African slaves who worked on the island's plantations. Slavery continued until it was phased out through most of the British Empire by the Slavery Abolition Act 1833 . On 30 November 1966, Barbados moved towards political independence and assumed

6816-586: The island, in the Scotland District, has resulted in the formation of various caves and gullies . On the Atlantic east coast of the island coastal landforms , including stacks , have been created due to the limestone composition of the area. Also notable in the island is the rocky cape known as Pico Teneriffe or Pico de Tenerife, which is named after the fact that the island of Tenerife in Spain

6912-532: The island, or, more fancifully, to a visual impression of a beard formed by the sea foam that sprays over the outlying coral reefs. In 1519, a map produced by the Genoese mapmaker Visconte Maggiolo showed and named Barbados in its correct position. Furthermore, the island of Barbuda in the Leewards is very similar in name and was once named " Las Barbudas " by the Spanish. The original name for Barbados in

7008-534: The late 15th century, claiming it for the Crown of Castile . It first appeared on a Spanish map in 1511. The Portuguese Empire claimed the island between 1532 and 1536, but abandoned it in 1620 with their only remnants being an introduction of wild boars for a good supply of meat whenever the island was visited. An English ship, the Olive Blossom , arrived in Barbados on 14 May 1625; its men took possession of

7104-455: The microwave signal and convert them to frequencies compatible with standard TV tuners (much like on satellite dishes where the signals are converted down to frequencies more compatible with standard TV coaxial cabling ), some antennas use an integrated down-converter or transceiver. Digital TV channels can then be decoded with a standard cable set-top box or directly for TVs with integrated digital tuners. Internet data can be received with

7200-607: The mid-1630s, they also received 5 to 10 acres (2 to 4 hectares) of land, but after that time the island filled and there was no more free land. During the Cromwellian era (1650s) this included a large number of prisoners-of-war, vagrants and people who were illicitly kidnapped, who were forcibly transported to the island and sold as servants. These last two groups were predominantly Irish, as several thousand were infamously rounded up by English merchants and sold into servitude in Barbados and other Caribbean islands during this period,

7296-413: The name Wireless Broadband Internet (WBBI) for rural internet access until it was shut down in 2014 and replaced with an LTE-TDD system due to reallocation of the radio spectrum by Industry Canada. In Mexico, the 2.5 GHz band spectrum was reclaimed by the government in order to allow newer and better wireless data services. Hence, MAS TV (formerly known as MVS Multivision) had to relinquish

7392-424: The notary itself can be untrusted. There have been several high-profile public failures by assorted certificate authorities. At the other end of the conceptual range is the web of trust system, which avoids central Certificate Authorities entirely. Each user is responsible for getting a certificate from another user before using that certificate to communicate with the user. PGP and GPG (an implementation of

7488-454: The old Chorus franchise area and DVB-C /MPEG-2 in the old NTL franchise area. The existing licences were to expire 18 April 2014, but Comreg, the Irish communications regulator, extended the licences for a further 2 years to 18 April 2016, at which date they expired together with all associated spectrum rights of use. The 2.6 GHz band spectrum will be auctioned off so that when

7584-676: The parish of Saint James ; Oistins , in the parish of Christ Church ; and Speightstown , in the parish of Saint Peter . Barbados lies on the boundary of the South American and the Caribbean Plates . The subduction of the South American Plate beneath the Caribbean Plate scrapes sediment from the South American Plate and deposits it above the subduction zone forming an accretionary prism . The rate of this depositing of material allows Barbados to rise at

7680-584: The period when white servants were used for plantation labour in Barbados, and while a "steady stream" of Irish servants entered the Barbados throughout the 17th century, Cromwellian efforts to pacify Ireland created a "veritable tidal wave" of Irish labourers who were sent to Barbados during the 1650s. Due to inadequate historical records, the total number of Irish labourers sent to Barbados is unknown, and estimates have been "highly contentious". While one historical source estimated that as many as 50,000 Irish people were deported to either Barbados or Virginia during

7776-587: The replacement of the Barbadian monarchy with a president elected through electoral college . Barbados would then cease to be a Commonwealth realm , but could maintain membership in the Commonwealth of Nations , like Guyana and Trinidad and Tobago . On 20 September 2021, just over a full year after the announcement for the transition was made, the Constitution (Amendment) (No. 2) Bill, 2021

7872-579: The second-largest hawksbill turtle-breeding population in the Caribbean. The driving of vehicles on beaches can crush nests buried in the sand and such activity is discouraged in nesting areas. Barbados is also the host to the green monkey . The green monkey is found in West Africa from Senegal to the Volta River. It has been introduced to the Cape Verde islands off north-western Africa, and

7968-425: The sender and receiver wish to exchange encrypted messages, each must be equipped to encrypt messages to be sent and decrypt messages received. The nature of the equipping they require depends on the encryption technique they might use. If they use a code , both will require a copy of the same codebook . If they use a cipher , they will need appropriate keys. If the cipher is a symmetric key cipher , both will need

8064-778: The service infeasible. The national shutdown was planned to be finished at the end of 2012; as of 2013, the service had already been shut down in most cities. In the Dominican Republic , Wind Telecom started operations using MMDS technology in 2008; at that time and ever since it became a pioneer taking advantage of such implementations. The company uses the DVB standard for its digital television transmissions. Barbados Barbados ( UK : / b ɑːr ˈ b eɪ d ɒ s / bar- BAY -doss ; US : / b ɑːr ˈ b eɪ d oʊ s / bar- BAY -dohss ; locally / b ɑːr ˈ b eɪ d ə s / bar- BAY -dəss )

8160-477: The status of a Commonwealth realm , becoming a separate jurisdiction with Elizabeth II as the Queen of Barbados . On 30 November 2021, Barbados transitioned to a republic within the Commonwealth , replacing its monarchy with a ceremonial president. Barbados's population is predominantly of African ancestry. While it is technically an Atlantic island, Barbados is closely associated with the Caribbean and

8256-778: The wireless modem and the WMTS. MMDS provided significantly greater range than LMDS. MMDS may be obsoleted by the newer 802.16 WiMAX standard approved since 2004. MMDS was sometimes expanded to multipoint microwave distribution system or multi-channel multi-point distribution system . All three phrases refer to the same technology. In the United States, WATCH Communications (based in Lima, Ohio), Eagle Vision (based in Kirksville, MO), and several other companies offer MMDS-based wireless cable television, Internet access, and IP -based telephone services. In certain areas, BRS

8352-449: The world average of 1.6 global hectares per person. In 2016 Barbados used 0.84 global hectares of biocapacity per person - their ecological footprint of consumption. This means they use approximately five times as much biocapacity as Barbados contains. As a result, Barbados is running a biocapacity deficit. Barbados is host to four species of nesting turtles ( green turtles , loggerheads , hawksbill turtles , and leatherbacks ) and has

8448-406: Was addressed in the fourth section of the paper. Public key infrastructures (PKIs) have been proposed as a workaround for the problem of identity authentication. In their most usual implementation, each user applies to a “ certificate authority ” (CA), trusted by all parties, for a digital certificate which serves for other users as a non-tamperable authentication of identity. The infrastructure

8544-483: Was announced delayed by August 2023, with the final report submitted 30 June 2024. Barbados is situated in the Atlantic Ocean, east of the other West Indies Islands. Barbados is the easternmost island in the Lesser Antilles . It is 34 kilometres (21 miles) long and up to 23 km (14 mi) wide, covering an area of 439 km (169 sq mi). It lies about 168 km (104 mi) east of both

8640-503: Was enacted in 1961. Barbados joined the short-lived British West Indies Federation from 1958 to 1962, later gaining full independence on 30 November 1966. Errol Barrow became the country's first prime minister. Barbados opted to remain within the Commonwealth of Nations . The effect of political independence meant that the United Kingdom government ceased to having sovereignty over Barbados, Elizabeth II , instead, reigning in

8736-479: Was established as a proprietary colony and funded by Sir William Courten , a City of London merchant who acquired the title to Barbados and several other islands. The first colonists were actually tenants, and much of the profits of their labour returned to Courten and his company. Courten's title was later transferred to James Hay, 1st Earl of Carlisle , in what was called the "Great Barbados Robbery". Carlisle then chose as governor Henry Powell , who established

8832-453: Was influential in laws in other colonies. By 1680 there were 20,000 free whites and 46,000 enslaved Africans; by 1724, there were 18,000 free whites and 55,000 enslaved Africans. The harsh conditions endured by the slaves resulted in several planned slave rebellions, the largest of which was Bussa's rebellion in 1816 which was rapidly suppressed by the colonial authorities. In 1819, another slave revolt broke out on Easter Day. The revolt

8928-660: Was introduced to the Parliament of Barbados. Passed on 6 October, the Bill made amendments to the Constitution of Barbados, introducing the office of the president of Barbados to replace the role of Elizabeth II as Queen of Barbados. The following week, on 12 October 2021, incumbent Governor-General of Barbados Sandra Mason was jointly nominated by the Prime Minister and Leader of the Opposition as candidate to be

9024-585: Was largely ignored by Europeans, though Spanish slave raiding is thought to have reduced the native population, with many fleeing to other islands. The first English ship, which had arrived on 14 May 1625, was captained by John Powell. The first settlement began on 17 February 1627, near what is now Holetown (formerly Jamestown, after King James I of England), by a group led by John Powell's younger brother, Henry , consisting of 80 settlers and 10 English indentured labourers . Some sources state that some Africans were amongst these first settlers. The settlement

9120-597: Was only launched from 1999 to 2001 by Pacific Bell (the merged Bell Atlantic/NYNEX never launched a service), while Americast also petered out by that time, albeit mainly in GTE and BellSouth areas; the systems operated by Ameritech utilized standard wired cable. In the Canadian provinces of Manitoba and British Columbia , Craig Wireless operates a wireless cable and internet service (MMDS) for rural and remote customers. In Saskatchewan , Sasktel operated an MMDS system under

9216-531: Was put down in blood, with heads being displayed on stakes. Nevertheless, the brutality of the repression shocked even England and strengthened the abolitionist movement. Growing opposition to slavery led to its abolition in the British Empire in 1833. The plantocracy class retained control of political and economic power on the island, with most workers living in relative poverty. The 1780 hurricane killed more than 4,000 people on Barbados. In 1854,

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