List: Broadband

by likeorhate

•  Digital Enhanced Cordless Telecommunications

  Digital Enhanced Cordless Telecommunications (DECT), known as Digital European Cordless Telephone until 1995, is an ETSI standard for digital portable phones (cordless home telephones), commonly used for domestic or corporate purposes. It is recognised by the ITU as fulfilling the IMT-2000 requirements and thus qualifies as a 3G system.

  

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•  Local-loop unbundling

  Local loop unbundling (LLU or LLUB) is the regulatory process of allowing multiple telecommunications operators to use connections from the telephone exchange's central office to the customer's premises. The physical wire connection between customer and company is known as a "local loop", and it is owned by the incumbent local exchange carrier (also referred to as the "ILEC," "local exchange," or in the United States either a "Baby Bell" or an Independent telephone company).

  

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•  Standard-definition television

  Standard-definition television (or SDTV) is a television system that has a resolution that meets standards but not considered either enhanced-definition television (EDTV) or high-definition television (HDTV). The term is usually used in reference to digital television, in particular when broadcasting at the same (or similar) resolution as analog systems. In the USA, SDTV refers to digital television broadcast in 4:3 aspect ratio, the same aspect ratio as NTSC signals.

  

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•  Broadband Internet access

  Broadband Internet access, often shortened to just broadband, is a high data rate Internet access—typically contrasted with dial-up access using a 56k modem. Dial-up modems are limited to a bitrate of less than 56 kbit/s and require the full use of a telephone line—whereas broadband technologies supply more than double this rate and generally without disrupting telephone use.

  

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•  Digital tuner

  

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•  Voice over Internet Protocol

  Voice over Internet Protocol (VoIP) is a general term for a family of transmission technologies for delivery of voice communications over IP networks such as the Internet or other packet-switched networks. Other terms frequently encountered and synonymous with VoIP are IP telephony, Internet telephony, voice over broadband (VoBB), broadband telephony, and broadband phone.

  

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•  Broadband

  The term broadband can have different meanings in different contexts. The term's meaning has undergone substantial shifts.

  

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•  Broadband open access

  Broadband open access is an issue of policy debate in telecommunications, regarding whether or not companies which own broadband telecommunication infrastructure (such as cable operators) should be required to provide access to their facilities for competing businesses which do not own physical infrastructure. The issue came to the fore in the U.S. in 1998, when AT&T announced its plan to acquire TCI, then the nation's largest cable operator.

  

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•  Satellite dish

  A dish is a type of parabolic antenna designed to receive microwaves from communications satellites, which transmit data transmissions or broadcasts, such as satellite television.

  

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•  ISDB

  ISDB-T é o acrônimo de "Integrated Services Digital Broadcasting Terrestrial" (Serviço Integrado de Transmissão Digital Terrestre). Este é o padrão japonês de TV Digital, apontado como o mais flexível de todos por responder melhor a necessidades de mobilidade e portabilidade. Ele é uma evolução do sistema DVB-T, usado pela maioria dos países do mundo, e vem sendo desenvolvido desde a década de 70 pelo laboratório de pesquisa da rede de TV NHK.

  

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•  Digibox (Sky Digital)

  

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•  Uncapping

  Uncapping, in the context of cable modems, refers to a number of activities performed to alter one's internet service provider modem settings. It is sometimes done for the sake of bandwidth (i.e. by buying a 512kbit/s access modem and then altering it to 10Mbit/s), pluggable interfaces (as by using more than one public ID), or any configurable options a DOCSIS modem can offer.

  

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•  Hybrid fibre-coaxial

  Hybrid fibre-coaxial (HFC) is a telecommunications industry term for a broadband network which combines optical fibre and coaxial cable. It has been commonly employed globally by cable TV operators since the early 1990s. See diagram below for a typical architecture for an HFC Network.

  

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•  Satellite Internet access

  Satellite Internet services are used in locations where terrestrial Internet access is not available, and also for users who move frequently. Broadband Internet access via geostationary satellite is available almost worldwide, including vessels at sea and mobile land vehicles. Similar, but slower Internet service is also available through Low Earth Orbit (LEO) satellites, however their coverage areas also include the polar regions at extreme latitudes, making them truly global.

  

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•  Cincinnati Bell

  Cincinnati Bell is the dominant telephone company for Cincinnati, Ohio and its nearby suburbs in the U.S. states of Ohio, Indiana and Kentucky. The parent company is named Cincinnati Bell Inc. Its incumbent local exchange carrier (ILEC) subsidiary uses the name Cincinnati Bell Telephone Company LLC, and Cincinnati Bell Wireless provides mobile phone services. Other subsidiaries handle services such as payphones and long distance.

  

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•  Broadband networks

  The ideal . The .

  

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•  Traffic contract

  If a service (or application) wishes to use a broadband network (an ATM network in particular) to transport a particular kind of traffic, it must first inform the network about what kind of traffic is to be transported, and the performance requirements of that traffic. The application presents this information to the network in the form a traffic contract.

  

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•  Network Resource Management

  Network resource management is used in broadband networks to keep track of the way link resources are allocated to connections. The two primary resources that are tracked by network resource management are capacity and connection identifiers. Network resource management keeps track of the capacity and controls the allocation of capacity to connections when requested as part of the connection setup process.

  

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•  Verizon FiOS

  Verizon FiOS is a bundled communications (Internet, telephone, and TV) service, operating over a fiber-optic communications network, that is presently offered in some areas of the United States by Verizon. Verizon has attracted consumer and media attention in the area of broadband Internet access as the first major U.S. carrier to offer fiber to the home/premises.

  

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•  Teletraffic engineering in broadband networks

  . Various aspects relating to teletraffic engineering in broadband networks are discussed in this article. Firstly, the nature of broadband traffic is different from that of traditional voice networks. Many of the methodologies developed for traditional networks were based on the nature of voice calls, and are therefore not applicable to broadband networks. The nature of broadband traffic (broadband traffic characteristics) is discussed in the following sub-section.

  

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•  Bandwidth throttling

  Bandwidth throttling is a method of ensuring a bandwidth intensive device, such as a server, will limit ("throttle") the quantity of data it transmits and/or accepts within a specified period of time. For website servers and web applications, bandwidth throttling helps limit network congestion and server crashes, whereas for ISP's, bandwidth throttling can be used to limit users' speeds across certain applications (such as BitTorrent), or limit upload speeds.

  

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•  Passive optical network

  A passive optical network (PON) is a point-to-multipoint, fiber to the premises network architecture in which unpowered optical splitters utilizing Brewster's angle principles are used to enable a single optical fiber to serve multiple premises, typically 32-128. A PON consists of an optical line terminal (OLT) at the service provider's central office and a number of optical network units (ONUs) near end users.

  

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•  Bandwidth cap

  A bandwidth cap, also known as a bit cap, limits the transfer of a specified amount of data over a period of time. Internet service providers commonly apply a cap when a channel intended to be shared by many users becomes overloaded, or may be overloaded, by a few users. Implementation of a bandwidth cap is sometimes termed a Fair Access Policy.

  

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•  BT 21CN

  The 21st Century Network (21CN) programme is the network transformation project of the UK telecommunications company BT Group plc. It will see the UK incumbent's telephone network move from the present AXE/System X Public Switched Telephone Network (PSTN) to an Internet Protocol (IP) system. As well as switching over the PSTN, BT has revealed plans to deliver many additional services over their new network, such as on-demand interactive TV services.

  

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•  I-Cable Communications

  i-CABLE Communications Limited (a Hong Kong Cable Television Limited holding company), i-Cable in short, is an internet Service Provider in Hong Kong. In 1999, the company began to develop advanced applications for its fibre coaxial network (already used for the paid-TV service) and to capitalise on the rapidly growing number of Internet users in Hong Kong.

  

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