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Broadband

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algorithms with different bit-rates. For example, audio signals can be encoded with bit-rates ranging from less than 1 kbit/s to hundreds of kbit/s, using different encoding algorithms with a wide range of complexity and quality of audio reproduction. Similarly, full motion video signals may be encoded with bit-rates ranging from less than 1 Mbit/s to hundreds of Mbit/s. Thus a network transporting both video and audio signals may have to integrate traffic with a very broad range of bit-rates.
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database. Entertainment video applications are largely point-to-multi-point connections, requiring one-way communication of full motion video and audio from the program source to the viewers. Video teleconferencing involves connections among many parties, communicating voice, video, as well as data. Offering future services thus requires flexible management of the connection and media requests of a multi-point, multi-media communication call.
2698: 731:. The act of demodulating converts broadband video to baseband video. Fiber optic allows the signal to be transmitted farther without being repeated. Cable companies use a hybrid system using fiber to transmit the signal to neighborhoods and then changes the signal from light to radio frequency to be transmitted over coaxial cable to homes. Doing so reduces the use of having multiple head ends. A 1131: 2686: 332:
Traditional voice calls are predominantly two party calls, requiring a point-to-point connection using only the voice medium. To access pictorial information in a remote database would require a point-to-point connection that sends low bit-rate queries to the database and high bit-rate video from the
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The information content of each medium may affect the information generated by other media. For example, voice could be transcribed into data via voice recognition, and data commands may control the way voice and video are presented. These interactions most often occur at the communication terminals,
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These networks were largely engineered for a specific application and are not suited to other applications. For example, the traditional telephone network is too noisy and inefficient for bursty data communication. On the other hand, data networks which store and forward messages using computers had
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Personal computing facilitated easy access, manipulation, storage, and exchange of information, and required reliable data transmission. Communicating documents by images and the use of high-resolution graphics terminals provided a more natural and informative mode of human interaction than do voice
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A multi-rate service network is one which flexibly allocates transmission capacity to connections. A multi-media network has to support a broad range of bit-rates demanded by connections, not only because there are many communication media, but also because a communication medium may be encoded by
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Bandwidth has historically been very unequally distributed worldwide, with increasing concentration in the digital age. Historically only 10 countries have hosted 70–75% of the global telecommunication capacity (see pie-chart Figure on the right). In 2014, only three countries (China, the US, and
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It was desirable to have a single network for providing all these communication services to achieve the economy of sharing. This economy motivates the general idea of an integrated services network. Integration avoids the need for many overlaying networks, which complicates network management and
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are some of the most common applications now being supported by fibre optic networks, in some cases directly to the home (FTTh – Fibre To The Home). These types of fibre optic networks incorporate a wide variety of products to support and distribute the signal from the central office to an optic
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Japan) host 50% of the globally installed telecommunication bandwidth potential. The U.S. lost its global leadership in terms of installed bandwidth in 2011, being replaced by China, which hosts more than twice as much national bandwidth potential in 2014 (29% versus 13% of the global total).
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limited connectivity, usually did not have sufficient bandwidth for digitised voice and video signals, and suffer from unacceptable delays for the real-time signals. Television networks using radio or cables were largely broadcast networks with minimum switching facilities.
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antenna may be described as "broadband" because it is capable of receiving a wide range of channels, while e.g. a low-VHF antenna is "narrowband" since it receives only 1 to 5 channels. The U.S. federal standard FS-1037C defines "broadband" as a synonym for
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While multiple network structures were capable of supporting broadband services, an ever-increasing percentage of broadband and MSO providers opted for fibre-optic network structures to support both present and future bandwidth requirements.
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These new data transmission requirements may require new transmission means other than the present overcrowded radio spectrum. A modern telecommunications network (such as the broadband network) must provide all these different services
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infrastructure are called broadband to indicate the wide range of frequencies that can include multiple data users as well as traditional television channels on the same cable. Broadband systems usually use a different
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Cell-delay variation (CDV) is the range of delays experienced by each group of associated cells. Low cell-delay variation means a group of cells must travel through the network without getting too far apart from one
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reduces flexibility in the introduction and evolution of services. This integration was made possible with advances in broadband technologies and high-speed information processing of the 1990s.
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twisted-pair wire (no telephone filters), it becomes hundreds of kilohertz wide (broadband) and can carry up to 100 megabits per second using very high-bit rate digital subscriber line (
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Broadband networks employ frequency-division multiplexing to divide coaxial cable into separate channels, each of which serves as an individual local network.
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enhances group interaction at a distance. High-definition entertainment video improves the quality of pictures, but requires much higher transmission rates.
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up to 1 Gigabit/s (which is considered high-speed as of 2014) using existing home business and home wiring (including power lines, but also phone lines and
2619: 2732: 1249: 503:(B-ISDN) was designed for these needs. The types of traffic supported by a broadband network can be classified according to three characteristics: 831: 2484: 197:) passbands, thus allowing for much higher throughput over a single medium but with additional complexity in the transmitter/receiver circuitry. 1942: 1341: 1180: 27: 2353: 1917: 1714: 1680: 1423: 2291: 1579: 208:(dial-up being typically limited to a maximum of 56 kbit/s). This meaning is only distantly related to its original technical meaning. 1745: 95:
Originally used to mean 'using a wide-spread frequency' and for services that were analog at the lowest level, nowadays in the context of
2458: 2810: 2545: 1686: 860: 223:” in Seattle, the term “Meaningful Broadband” was introduced to the world leaders, leading to the activation of a movement to close the 1784: 1746:"802.3b-1985 – Supplement to 802.3: Broadband Medium Attachment Unit and Broadband Medium Specifications, Type 10BROAD36 (Section 11)" 871:
A number of national and international regulators categorize broadband connections according to upload and download speeds, stated in
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standard for Ethernet ratified in 2008 used DSL technology, and both cable and DSL modems often have Ethernet connectors on them.
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Traditionally, different telecommunications services were carried via separate networks: voice on the telephone network, data on
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The types of traffic found in a broadband network (with examples) and their respective requirements are summarised in Table 1.
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gathers all the information from the local cable networks and movie channels and then feeds the information into the system.
1720: 1974: 2815: 2725: 812:, the term "broadband" is used loosely to mean "access that is always on and faster than the traditional dial-up access". 415: 54: 1643: 153:
Different criteria for "broad" have been applied in different contexts and at different times. Its origin is in physics,
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that exploits signals at a wide spread of frequencies or several different simultaneous frequencies, and is used in fast
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Attenborough, Keith (1988). "Review of ground effects on outdoor sound propagation from continuous broadband sources".
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in the sense that digital information is sent over multiple channels. Each channel is at a higher frequency than the
1530: 99:, 'broadband' is often used to mean any high-speed Internet access that is seemingly always 'on' and is faster than 2934: 2830: 2690: 2031: 1749: 1504: 1099: 764:
have also been used for various types of data communication. Although some systems for remote control are based on
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high enough to require broadband Internet access for viewing. "Broadband video" is also sometimes used to describe
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signaling, modern high-speed systems use broadband signaling to achieve very high data rates. One example is the
118: 2611: 2914: 2904: 2825: 2718: 1136: 761: 732: 216: 1381: 2924: 2820: 2770: 2760: 2292:"Protecting and Promoting the Open Internet - A Rule by the Federal Communications Commission on 04/13/2015" 1200: 473: 205: 100: 302:, or any combination of these media. Each medium has different demands for communication quality, such as: 820: 232: 162: 1691:
Broadband: Modulating the data signal onto an RF carrier and applying this RF signal to the carrier media
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Government of Canada, Canadian Radio-television and Telecommunications Commission (CRTC) (2013-03-20).
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Government of Canada, Canadian Radio-television and Telecommunications Commission (CRTC) (2013-03-20).
1349: 1144: 1938: 1185: 189:), it is still occupying a single channel. The key difference is that what is typically considered a 791: 520:(QoS) profile means that the cells need to travel quickly from one point in the network to another. 411: 89: 65: 1996:
Hart, Jeffrey A.; Reed, Robert R.; Bar, François (November 1992). "The building of the internet".
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Global bandwidth concentration: 3 countries have almost 50% between them; 10 countries almost 75%.
2977: 2157: 2013: 1617: 1609: 1591: 1168: 780: 776: 517: 438: 410:, a broadband signalling method is one that handles a wide band of frequencies. "Broadband" is a 407: 389: 355: 42: 2097:"FCC Finds U.S. Broadband Deployment Not Keeping Pace | Federal Communications Commission" 1753: 1110: 1846: 1710: 1676: 1479: 1451: 1419: 1371: 1293: 679:
to cable television residential customers. Matters were further confused by the fact that the
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broadband variant of Ethernet was standardized by 1985, but was not commercially successful.
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on a single pair of wires at the same time. However, when that same line is converted to a
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Modern networks have to carry integrated traffic consisting of voice, video and data. The
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Broadband Internet service in the United States was effectively treated or managed as a
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A range of more precise definitions of speed have been prescribed at times, including:
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of a channel, the greater the data-carrying capacity, given the same channel quality.
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will transmit a data rate of 56 kilobits per second (kbit/s) over a 4-kilohertz-wide
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Broadband: relative term referring to a system which carries a wide frequency range.
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is the amount of delay associated with a connection. Requesting low latency in the
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Digital corporate citizenship : the business response to the digital divide
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and economical implementation for a diversity of services (multi-services). The
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The total bandwidth of the medium is larger than the bandwidth of any channel.
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signal is also modulated so that it occupies higher frequencies (compared to a
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A multi-media call may communicate audio, data, still images, or full-motion
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These aspects are examined individually in the following three sub-sections.
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HTI+ Home Technology Integration and CEDIA Installer I All-in-One Exam Guide
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Quality of Service: Delivering QoS on the Internet and in Corporate Networks
680: 665: 630: 461: 252: 166: 154: 441:. This broad band is often divided into channels or "frequency bins" using 2685: 358:, video teleconferencing on private corporate networks, and television on 145:(ATM) was promoted as a target technology for meeting these requirements. 2944: 2795: 2775: 2032:"Recommendation I.113, Vocabulary of Terms for Broadband aspects of ISDN" 1526: 743: 716: 697: 638: 634: 633:
to transmit one type of signal using a medium's full bandwidth using its
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The term became popularized through the 1990s as a marketing term for
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standard became available to consumers in the late 1990s, to provide
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which can support one million separate devices per square kilometer.
2646: 2067:. Federal Communications Commission. August 6, 2010. Archived from 1596: 1365: 1220:"Types of Broadband Connections; Federal Communications Commission" 510:
is the amount of network capacity required to support a connection.
472:, independent of physical modulation details. The various forms of 2954: 2949: 2894: 2878: 2855: 2710: 1370:. Indianapolis: The Center on Philanthropy at Indiana University. 1060: 1006: 949: 913: 824: 769: 704: 453: 430: 422: 414:, understood according to its context. The wider (or broader) the 299: 81: 32: 2785: 2260: 1503:. Center for Pervasive Communications and Computing, UC Irvine. 772: 747: 493: 385: 381: 377: 108: 2714: 707:
distribution is traditionally used to refer to systems such as
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in this sense is a signal that occupies multiple (non-masking,
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Switching and traffic theory for integrated broadband networks
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made developments on the creation of ultra-shallow broadband
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signal which is bound to the lowest end of the spectrum, see
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25 Mbit/s downstream, 3 Mbit/s upstream —FCC, 2015
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Federal Standard 1037C, Glossary of Telecommunication Terms
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Canadian Radio-television and Telecommunications Commission
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utilize various standards for data transmission, including
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Since 1999, broadband Internet access has been a factor in
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rules until being overturned by the FCC in December 2017.
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What every engineer should know about data communications
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What every engineer should know about data communications
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Invited Submission to Computer Networks and ISDN Systems
1501:"B-ISDN (Broadband Integrated Services Digital Network)" 141:(B-ISDN) was planned to provide these characteristics. 1877:
Baxter, Les A.; Georger, William H. (August 1, 1995).
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Internet video has come to mean video files that have
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Table 1: Network traffic types and their requirements
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50 Mbit/s downstream, 10 Mbit/s upstream —
468:(B-ISDN) used the term to refer to a broad range of 2887: 2869: 2841: 2748: 715:on carriers at fixed frequencies. In this context, 641:family are given names, such as the original 1980s 393:node, and ultimately to the subscriber (end-user). 1443: 1285: 837:4 Mbit/s downstream, 1 Mbit/s upstream — 823:" (which ranged from about 1.5 to 2 Mbit/s) — 788:Korea Advanced Institute of Science and Technology 1910:"BT Vision boasts 150,000 customers | Media" 1102:to quote speed during night time and busy hours 173:, the term was mainly used for transmission over 1196:List of broadband providers in the United States 1096:Australian Competition and Consumer Commission 37:Fixed broadband subscriptions (per 100 people) 2726: 2389:"Broadband in the EU Member States (12/2018)" 738:However, "broadband video" in the context of 501:Broadband Integrated Services Digital Network 466:Broadband Integrated Services Digital Network 425:, for example, a very narrow band will carry 319:signal fidelity upon delivery by the network. 139:Broadband Integrated Services Digital Network 8: 2583:"What you should know about Internet speeds" 2123:"What you should know about Internet speeds" 1839:Gilster, Ron; Heneveld, Helen (2004-06-22). 658:modulated by the data signal for each band. 449:instead of sending a higher-quality signal. 26:"HSIA" redirects here. For the airport, see 2494:. Department for Culture, Media and Sport. 1553:"New ITU Standard Delivers 10x ADSL Speeds" 1437: 1435: 775:standard, which provides a way to create a 2733: 2719: 2711: 885: 2521:"FCC INCREASES BROADBAND SPEED BENCHMARK" 2383: 2381: 2379: 1595: 1499:Ender Ayanoglu; Nail Akar (25 May 2002). 2091: 2089: 1973:. US Federal Communications Commission. 1446:Broadband Networking: ATM, SDH and SONET 1288:Teletraffic Technologies in ATM Networks 1109: 545: 2478: 2476: 1889:from the original on September 29, 2015 1279: 1277: 1275: 1273: 1271: 1211: 324:but may also occur within the network. 2483:Hood, Hannah Hood (22 December 2016). 1787:from the original on February 25, 2012 1637: 1635: 1559:from the original on September 3, 2016 1527:"Knowledge Base - How Broadband Words" 1340:John P. Shanidin (September 9, 1949). 1181:Broadband mapping in the United States 645:, to indicate this. Networks that use 346:A single network for multiple services 28:Hazrat Shahjalal International Airport 2501:from the original on 22 December 2019 2325:"F.C.C. Repeals Net Neutrality Rules" 1507:from the original on October 16, 2009 1469: 1467: 1409: 1407: 1405: 1403: 1401: 1399: 221:Financial Solutions to Digital Divide 7: 2038:from the original on 6 November 2012 1450:. Boston, London: Artech House Inc. 711:, where the individual channels are 539:Requirements of the types of traffic 388:(voice over internet protocol), and 2268:from the original on April 14, 2015 2235:from the original on March 12, 2015 2196:from the original on March 13, 2015 2186:"What the Net Neutrality Rules Say" 2165:from the original on March 13, 2015 2151:Ruiz, Rebecca R. (March 12, 2015). 1777:"Broadband user share pains, gains" 1709:. New York: M. Dekker. p. 64. 572:Voice, guaranteed circuit emulation 121:has the following characteristics: 2431:from the original on 10 April 2019 2395:from the original on 10 April 2019 2364:from the original on 10 April 2019 2323:Kang, Cecilia (14 December 2017). 2153:"F.C.C. Sets Net Neutrality Rules" 2065:GN Docket No. 10-159, FCC-10-148A1 1977:from the original on July 13, 2011 1533:from the original on July 21, 2016 262:connected only two telephones per 14: 2562:from the original on 25 July 2019 2288:Federal Communications Commission 2254:Reisinger, Don (April 13, 2015). 2225:Federal Communications Commission 1723:from the original on 29 June 2016 1689:from the original on 2016-05-29. 839:Federal Communications Commission 484:voice channel, so it can support 269:used circuits of fixed bit-rates. 2696: 2684: 2657:(6). Escholarship.org: 567–581. 2304:from the original on May 2, 2015 1820:from the original on May 5, 2012 1143: 1129: 2622:from the original on 2021-12-05 2593:from the original on 2021-02-15 2415:"UK HOME BROADBAND PERFORMANCE" 2335:from the original on 2018-01-17 2184:Sommer, Jeff (March 12, 2015). 2133:from the original on 2021-02-15 2103:from the original on 2016-07-05 1945:from the original on 2016-05-15 1920:from the original on 2017-01-29 1859:from the original on 2023-06-28 1474:Ferguson P.; Huston G. (1998). 1384:from the original on 5 May 2021 1230:from the original on 2022-06-05 827:in "broadband service" in 1988. 447:frequency-division multiplexing 2645:Hilbert, Martin (2016-01-06). 1885:. AT&T Bell Laboratories. 1775:Paula Musich (July 20, 1987). 1703:Clifton, Carl Stephen (1987). 1478:. John Wiley & Sons, Inc. 1418:. Kluwer Academic Publishers. 1191:Internet in the United Kingdom 1106:Global bandwidth concentration 384:(high definition television), 247:Differences from old telephony 161:", or in the context of audio 1: 2701:The dictionary definition of 1669:Carl Stephen Clifton (1987). 2663:10.1016/j.telpol.2016.01.006 2612:"Broadband Performance Data" 2215:FCC Staff (March 12, 2015). 2010:10.1016/0308-5961(92)90061-S 1845:. McGraw Hill Professional. 1606:10.1016/0169-7552(96)00012-8 1364:Smith, Craig Warren (2002). 1327:10.1016/0003-682X(88)90086-2 727:form with separate baseband 219:Biannual Conference called “ 169:. Later, with the advent of 1971:The National Broadband Plan 1442:Sexton M.; Reid A. (1997). 486:plain old telephone service 3001: 1908:Mark Sweney (2008-02-07). 1750:IEEE Standards Association 1100:Internet Service Providers 801: 464:). In the late 1980s, the 452:In data communications, a 171:digital telecommunications 143:Asynchronous Transfer Mode 25: 18: 2651:Telecommunications Policy 1998:Telecommunications Policy 1675:. CRC Press. p. 64. 1354:Issued December 12, 1950. 362:radio or cable networks. 119:telecommunication network 16:Data transmission concept 2546:"CONNECTED NATIONS 2017" 1941:. Phys.org. 2014-12-04. 1250:"ATM Congestion Control" 1137:Telecommunication portal 786:In 2014, researchers at 757:Alternative technologies 433:without losing the high 273:Modern services can be: 217:World Trade Organization 2451:"Ultrafast fibre Gfast" 2099:. Fcc.gov. 2015-02-04. 1810:"Definition: broadband" 1201:National broadband plan 832:National Broadband Plan 474:digital subscriber line 437:required for realistic 316:within the network, and 215:. In that year, at the 163:noise reduction systems 2485:"Super fast broadband" 1883:www.cablinginstall.com 1752:. 1985. Archived from 1115: 496:or VHDSL) techniques. 397:Broadband technologies 259:the voice medium only, 233:Video teleconferencing 38: 1644:"ATM Traffic Control" 1113: 204:that was faster than 36: 2693:at Wikimedia Commons 2034:. ITU-T. June 1997. 1967:"What is Broadband?" 1756:on February 25, 2012 1352:on December 1, 2011. 1186:Internet in Malaysia 445:techniques to allow 380:(cable television), 255:communication used: 2888:Long range wireless 2461:on 22 November 2017 1346:US Patent 2,533,900 1256:on 10 February 2005 910:Full fibre / FTTP/H 792:optical instruments 548: 476:(DSL) services are 356:local area networks 66:transmission medium 2983:Digital technology 2329:The New York Times 2290:(April 13, 2015). 2190:The New York Times 2158:The New York Times 1578:Jain, Raj (1996). 1284:Saito, H. (1993). 1169:Wireless broadband 1116: 1094:In Australia, the 964:Ultra-fast / Gfast 819:"Greater than the 808:In the context of 798:Internet broadband 777:local area network 558:Required bandwidth 546: 518:quality of service 439:sound reproduction 408:telecommunications 402:Telecommunications 390:broadband internet 43:telecommunications 39: 19:For the book, see 2965: 2964: 2689:Media related to 2618:. 30 April 2014. 2492:What Do They Know 2360:. 15 April 2017. 1783:. pp. 1, 8. 1716:978-0-8247-7566-7 1682:978-0-8247-7566-7 1425:978-0-7923-9061-9 1315:Applied Acoustics 1092: 1091: 700:. "Broadband" in 627:computer networks 621:Computer networks 618: 617: 529:Cellular networks 435:audio frequencies 352:computer networks 175:multiple channels 103:over traditional 78:wireless Internet 58:data transmission 2990: 2735: 2728: 2721: 2712: 2700: 2688: 2673: 2672: 2670: 2669: 2642: 2631: 2630: 2628: 2627: 2608: 2602: 2601: 2599: 2598: 2578: 2572: 2571: 2569: 2567: 2561: 2550: 2542: 2536: 2535: 2533: 2531: 2525: 2517: 2511: 2510: 2508: 2506: 2500: 2489: 2480: 2471: 2470: 2468: 2466: 2457:. 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May 27, 2005. 1549: 1543: 1542: 1540: 1538: 1523: 1517: 1516: 1514: 1512: 1496: 1490: 1489: 1471: 1462: 1461: 1449: 1439: 1430: 1429: 1411: 1394: 1393: 1391: 1389: 1361: 1355: 1353: 1348:. Archived from 1337: 1331: 1330: 1310: 1304: 1303: 1292:. Artech House. 1291: 1281: 1266: 1265: 1263: 1261: 1252:. 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Index

Broad Band
Hazrat Shahjalal International Airport

telecommunications
bandwidth
data transmission
Internet access
transmission medium
coaxial cable
optical fiber
wireless Internet
radio
twisted pair
satellite
Internet access
dial-up access
analog
ISDN
PSTN
telecommunication network
Broadband Integrated Services Digital Network
Asynchronous Transfer Mode
acoustics
wideband
noise reduction systems
compander
digital telecommunications
multiple channels
passband
line coding

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