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Relevant bibliographies by topics / Very high-speed digital subscriber lines

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Academic literature on the topic 'Very high-speed digital subscriber lines'

Author: Grafiati

Published: 4 June 2021

Last updated: 12 February 2022

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Journal articles on the topic "Very high-speed digital subscriber lines"

1

Cioffi, J. M., V. Oksman, J. J. Werner, et al. "Very-high-speed digital subscriber lines." IEEE Communications Magazine 37, no. 4 (1999): 72–79. http://dx.doi.org/10.1109/35.755453.

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Cherubini, G., E. Eleftheriou, and S. Olcer. "Filtered multitone modulation for very high-speed digital subscriber lines." IEEE Journal on Selected Areas in Communications 20, no. 5 (2002): 1016–28. http://dx.doi.org/10.1109/jsac.2002.1007382.

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Cherubini, G., E. Eleftheriou, S. Oker, and J. M. Cioffi. "Filter bank modulation techniques for very high speed digital subscriber lines." IEEE Communications Magazine 38, no. 5 (2000): 98–104. http://dx.doi.org/10.1109/35.841832.

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Jacobsen, K. S. "Methods of upstream power backoff on very high speed digital subscriber lines." IEEE Communications Magazine 39, no. 3 (2001): 210–16. http://dx.doi.org/10.1109/35.910609.

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Nguyen, Minh Tuong, Viktor I. Nefedov, Igor V. Kozlovsky, Alexey V. Malafeev, Kirill A. Selenya, and Natalia A. Mirolyubova. "Analysis of the Raman spectrum of high-power amplifiers of wireless communication systems." Russian Technological Journal 7, no. 6 (2020): 96–105. http://dx.doi.org/10.32362/2500-316x-2019-7-6-96-105.

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At present, the transfer of information is an integral part of technologies that are actively developing in the framework of the process called the Fourth Industrial Revolution. In this, space-satellite, satellite and other mobile wireless communication systems play an increasingly important role. Almost all of them include multiple access, which means a method of common resource division of the communication channel between subscribers (each mobile station has the ability to use a satellite retransmitter or the base station of a mobile wireless communication system to transmit its signals regardless of the operation of another station). Multiple-access communication systems are used for digital radio and television broadcasting in high-speed communication lines, in wireless local area networks, for data transmission in the microwave range, and also for communication with various mobile partners. In the radio transmitting and receiving paths of communication systems with multiple access, multiple signals are used (the sum of the power of the subscriber signals) with very complex types of digital envelope modulation, so they use wide working bands. With an increase in the quality of information transmission in mobile wireless communication systems, there are special requirements for powerful amplification systems (PAS) of receiving-transmitting tracts, which must have high efficiency and high output power, required bandwidth, network capacity, and linearity of message transmission channels. To achieve maximum efficiency in the PAS, the operating point of its amplifying element should be near the saturation region, on the main nonlinearity of the transfer characteristic. When multiple signals are introduced simultaneously into the PAS, it generates unfiltered intermodulation harmonics (IH). Intermodulation harmonics are formed due to the nonlinearity of the amplitude characteristics and the unevenness of phase-amplitude characteristics and due to the need to work with the highest efficiency of the PAS, which requires a shift of the operating point to the saturation thresholds of their amplifying elements. This, in turn, causes the appearance of IH. Since the harmonic oscillations IH actually represent noise for neighboring communication channels and are not theoretically filtered, an equalizer (otherwise an optimizer) of characteristics, is needed to reduce the level of these interferences in the output (Raman) spectrum of the PAS.

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Cioffi, J. M., and S. Olcer. "Very high-speed digital subscriber line [Guest Editorial]." IEEE Communications Magazine 38, no. 5 (2000): 62–64. http://dx.doi.org/10.1109/mcom.2000.841827.

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Williams, L. V., and C. Eswaran. "Echo cancellation scheme for high speed digital subscriber lines." Electronics Letters 33, no. 9 (1997): 738. http://dx.doi.org/10.1049/el:19970516.

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Barton, M., L. Chang, and T. R. Hsing. "Performance study of high-speed asymmetric digital subscriber lines technology." IEEE Transactions on Communications 44, no. 2 (1996): 156–57. http://dx.doi.org/10.1109/26.486607.

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Oksman, V., and J. J. Werner. "Single carrier modulation technology for very high-speed digital subscriber line." IEEE Communications Magazine 38, no. 5 (2000): 82–89. http://dx.doi.org/10.1109/35.841830.

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10

Mazzenga, Franco, and Romeo Giuliano. "Analytical Framework for Preliminary Planning of Very High-Speed Digital Subscriber Line Access Networks." Information 8, no. 3 (2017): 86. http://dx.doi.org/10.3390/info8030086.

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Dissertations / Theses on the topic "Very high-speed digital subscriber lines"

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Umansky, Alec. "HIGH BANDWIDTH PORTABLE TRANSMISSION SYSTEMS USE OF xDSL TECHNOLOGY IN MILITARY, INDUSTRIAL AND TELEMETRIC APPLICATIONS." International Foundation for Telemetering, 2001. http://hdl.handle.net/10150/606418.

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International Telemetering Conference Proceedings / October 22-25, 2001 / Riviera Hotel and Convention Center, Las Vegas, Nevada<br>This paper introduces new telemetry (communications) equipment based on Digital Subscriber Loop DSL technology (high speed transmission over copper cables) for defense and industrial applications. A brief xDSL technology overview is followed with introduction of the new ‘P3’ product and its application, reviewing advantages of using copper as a communications medium whenever rapidly deployed data and voice links are essential. An Australian Army report, detailing a specific equipment deployment’s findings is reproduced as an independent reference material.

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Umansky, Alec. "HIGH BANDWIDTH PORTABLE TRANSMISSION SYSTEMS USE OF xDSL TECHNOLOGY IN MILITARY AND INDUSTRIAL TELEMETRIC APPLICATIONS." International Foundation for Telemetering, 2000. http://hdl.handle.net/10150/606792.

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International Telemetering Conference Proceedings / October 23-26, 2000 / Town & Country Hotel and Conference Center, San Diego, California<br>This paper introduces new telemetry equipment based on Digital Subscriber Loop DSL technology (high speed transmission over copper cables) for military and industrial applications. A brief xDSL technology overview is followed with introduction of the new ‘P3’ product. A number of new applications for remote data transmission are presented and further highlighted in the Australian Army report detailing their recent equipment operational deployments.

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王敏書. "Design and Implementation of a DMT Baseband Processor for Very High Speed Digital Subscriber Lines." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/52829078565045802250.

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碩士<br>國立臺灣大學<br>電機工程學研究所<br>89<br>In this thesis, a transceiver design for VDSL standard using the DMT(Discrete Multi-Tone) modulation is proposed. The design is based on ETSI VDSL standard, which is for very high speed digital subscriber loop. Recently, the need for high-speed data transmission increases rapidly, especially in the application of net-meeting, video on demand, video phone, etc. The DSL technology is proposed to achieve broadband access by transmitting data on existing telephone network instead of using fiber all the way to the residence, which is more costly. Basic principles of DMT and its related issues are illustrated in the thesis. Besides, the important features and parameters of ETSI VDSL standard are also introduced. By taking the non-idealities in the transmission environment into consideration, a transceiver architecture is proposed and verified by functional simulations and is able to combat those impairment in subscriber lines. For hardware implementation, fixed-point simulation of the proposed transceiver architecture was conducted to determine word length of important signals in the architecture with a view to reducing the circuit complexity and resources requirement without incurring too much performance loss. Finally, the main functional blocks are implemented by FPGA to verify their functionality.

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Wang, Amanda. "Effects of bridged taps on the channel capacity of very high-bit-rate digital subscriber lines." Thesis, 1999. http://hdl.handle.net/2429/9283.

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The Digital Subscriber Line (DSL) technologies have been developed to meet the growing demand for high speed data transmissions to home. These technologies offer data rates that are of several order of magnitudes compared to today's analog modems operating over the same existing copper twisted pairs. Very-high-bit-rate DSL (VDSL) is the latest member of the DSL family. To date, most of the analysis on channel performance for VDSL systems are based on the model of transmission lines without considering the adverse effects caused by the presence of bridged taps. In practical situations; however, multiple bridged taps can introduce severe propagation loss. This is especially pronounced in VDSL systems because the operating frequency range is higher and the bridged taps are shorter as compared to other DSL systems. Motivated by the above, the objective of this thesis is to study the effects of bridged taps on the channel capacity of VDSL services over the Unshielded Twisted Pair (UTP) under various noise impairment conditions. First, we develop channel models of VDSL loops with the presence of bridged taps. Then, we employ these models to obtain the mathematical expressions for the channel capacity by taking the additive white Gaussian noise (AWGN) and the far-end crosstalk (FEXT) noise into account: Using the proposed analytical models, we have discovered that the channel capacity is only affected by the lengths of the bridged taps but not their physical locations for homogeneous loops in AWGN environment. On the other hand, in a FEXT dominated environment, we have proved that the channel capacity increases when the bridging locations are moved away from the transmitter. In addition, we have determined that FEXT is the dominant impairment for short VDSL loops, while AWGN is the dominating impairment for long loops.

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Lin, Chii-Hsiung, and 林啟雄. "Research on the Very-high-speed Digital Subscriber Line." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/40326221837343547191.

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碩士<br>國立高雄第一科技大學<br>電腦與通訊工程所<br>90<br>Abstract VDSL is the latest and most advanced member in the family of DSL technologies. Both symmetrical and asymmetrical services can be supported. Examples are fast Internet access for users and content providers, digital video broadcasting, interactive video, LAN interconnection, teleworking and high quality videoconferencing. The Telco installed copper pair network presents a challenging environment for such high-speed transmission. Telco can leverage this asset to release the potential for competitive broadband services using VDSL technology. However, realization of the megabit capacity of the existing network is critically dependent on the suitable twisted pair access network. A bridged tap is an unterminated section of UTP wiring connected in shunt to a twisted pair of a distribution cable. The primary effect of a bridged tap is the introduction of “nulls” in the transfer function of the loop to which the bridged tap is attached. Bridged tap lengths range from 10m to 40m on the 26-gauge 300m VDSL loops. The notches could be as deep as 25dB. Typically, one central node will serve a base of VDSL customers and the loops that carry VDSL signals to the customers could differ significantly in length. This particular topology will raise problems for upstream capacity on the longest loops since the useful signal on these loops could be completely drowned by the strong FEXT coming from the shorter lines. Telco should take it seriously and let it be one of the most important evaluation items when deploying VDSL system. For providing multimedia services, including 3-channels of MPEG II video, high-speed Internet access, and POTS simultaneously over single pair of 0.4mm-gauge copper wire in Taiwan, 1000-meter VDSL servicing area is the best choice.

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Li, Xian Zong, and 李顯宗. "Study on the transmission structure over very high speed digital subscriber line." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/99135453708158152535.

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Books on the topic "Very high-speed digital subscriber lines"

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ADSL/VDSL principles: A practical and precise study of asymmetric digital subscriber lines and very high speed digital subscriber lines. Macmillan Technical Publishing, 1999.

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2

Rauschmayer, Dennis. Adsl/Vdsl Principles: A Practical and Precise Study of Asymmetric Digital Subscriber Lines and Very High Speed Digital Subscriber Lines (Macmillan Technology Series). Macmillan Technical Pub, 1998.

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3

Bingham, John A. C. ADSL, VDSL, and Multicarrier Modulation. Wiley & Sons, Incorporated, John, 2008.

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Bingham, John A. C. ADSL, VDSL, and Multicarrier Modulation. Wiley-Interscience, 2000.

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Book chapters on the topic "Very high-speed digital subscriber lines"

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Raisinghani, Mahesh S., and Hassan Ghanem. "A Managerial Analysis of Fiber Optic Communications." In Encyclopedia of Multimedia Technology and Networking, Second Edition. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-60566-014-1.ch118.

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A form of fiber-optic communication delivery in which an optical fiber is run directly onto the customers’ premises is called Fiber to the Premises (FTTP). This contrasts with other fiber-optic communication delivery strategies such as Fiber to the Node (FTTN), Fiber to the Curb (FTTC), or Hybrid Fiber-Coaxial (HFC), all of which depend upon more traditional methods such as copper wires or coaxial cable for “last mile” delivery (Fiber to the Premises, 2007). While high-speed fiber-optic cables are more often used to provide the primary links, the “last mile” to each home still plays an important role in the quality of service and bringing high-speed broadband to an area that is largely dependent on this last-mile connection. FTTP involves laying optical fiber from a central location (switch) to a termination point (the home or business), and could potentially deliver broadband at speeds of up to 100Mbps. The actual speed is determined by the size of the Passive Optical Network (PON). The technology is capable of transmitting data at speeds of up to 2.5Gbps; this amount is divided by the number of termination points on the PON to determine the actual bandwidth to each end point. Replacing copper infrastructures with fiber to every home in an area is an expensive proposition, but the rewards could be great for telecom providers. An FTTP infrastructure would enable those providers to not only provide high-speed broadband; they could also expand into other areas such as cable programming. The Baby Bells have another incentive to roll out FTTP as well; the FCC requires them to share their copper wires with their competitors, but that requirement would not apply to new FTTP infrastructures. This ruling gives providers a major incentive to roll out FTTP, despite the large initial investment that is required. Copper, the predominant connection to the home used today, has inherent limitations both in terms of length from home to switch, and amount of bandwidth that is provided. FTTP also has a great advantage over Digital Subscriber Line (DSL), which provides broadband over existing copper, because DSL infrastructures must have more central relay points due to distance limitations. DSL is limited to only a few thousand feet between the switch and the home; FTTP allows for up to 49.6 miles (80 kilometers) between the home and the central switch. Cable broadband already has a head start, but FTTP offers some advantages, in that cable has a limited upstream bandwidth. FTTP, while still very new, holds great promise. It will enable providers to easily provide customers with a single bundle of services that comprise voice, data, and video. Ultimately, FTTP will deliver higher bandwidth to the home, and a wider range of services at an affordable price. While some FTTP projects focus on replacing existing copper cable, new “greenfield” areas such as new housing developments are likely to see FTTP from the very beginning (WiseGeek, 2007).

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Spiliopoulou, Anastasia S., Ioannis Chochliouros, George K. Lalopoulos, and Stergios P. Chochliouros. "Local Loop Unbundling (LLU) Policies in the European Framework." In Encyclopedia of Multimedia Technology and Networking, Second Edition. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-60566-014-1.ch117.

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Recent European policies have very early identified (European Commission, 1999) the immense challenge for the European Union (EU) to promote various liberalization and harmonization measures in the relevant electronic communications markets, especially by supporting a series of particular initiatives for competition, investment, innovation, the single market, and consumer benefits (Chochliouros & Spiliopoulou, 2003). In order to fully seize the growth of the digital, knowledge-based economy, it has been suggested that both businesses and citizens should have access to an inexpensive, world-class communications infrastructure and a wide range of modern services, all appropriate to support “broadband” evolution and a wider multimedia penetration. Moreover, all possible different means of access had to prevent from “info-exclusion,” while information technologies should be used to renew urban and regional development and to promote innovative technologies (Chochliouros & Spiliopoulou, 2005). To achieve all these expectations, an essential European policy was to “initiate” further competition in local access networks and support the “local loop unbundling” (LLU) perspective, in order to help bring about a considerable reduction in the costs (in terms of price, quality, and innovative services) of using the Internet and to promote high-speed and “always-on” access (Bourreau & Dogan, 2005; Commission of the European Communities, 2006b). The local loop mainly referred to the physical copper line circuit in the local access network connecting the customer’s premises to the operator’s local switch, concentrator, or any other equivalent facility. Traditionally, it takes the form of twisted metallic pairs of copper wires (one pair per ordinary telephone line). However, some other potential alternatives can also be taken into account: fiber optic cables are nowadays being increasingly deployed to connect various customers, while other technologies are also being rolled out in the local access network (such as wireless/satellite local loops, power-line networks, or even cable TV networks). Although technology’s evolution and market development are very rapid, the above alternatives—even in a combined use—cannot provide adequate guarantee to ensure sufficient and nationwide spreading for LLU in a quite reasonable time period (Philpot, 2006) and mainly to address the same customer population, if practically compared to the digital subscriber loop (DSL) option which is offered via the existing copper infrastructures.

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Eyob, Ephrem. "Trends in Telecommunications and Networking in Secure E-Commerce Applications." In Encyclopedia of Multimedia Technology and Networking, Second Edition. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-60566-014-1.ch192.

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Telecommunications and networking, two prominent technologies of the information age, have enjoyed substantial investments from industry and government, resulting in unparalleled growth in the transmission of voice, video, and data over wired and wireless media. Since their inception several decades ago, these technologies and their business applications have progressed through several stages. Such progression commenced from the development of the primitive electronic funds transfer (EFT) in which funds could be transferred electronically, to the enormous variety of technologies available today. Several decades ago, the delivery of video, voice, and data was accomplished through three independent networks: television, telephone, and data networks, respectively (Panko, 2007). Today, a convergence of the three networks is occurring. For example, networking technology can deliver video, data, voice (through VoIP), graphics and other multimedia contents at considerable speed. Currently, there are many applications associated with telecommunications and networking technologies. They include electronic mail (e-mail), voice over Internet protocol (VoIP), and videoconferencing. Also, the Internet which was built on the world-wide telecommunications and networking infrastructure gave rise to many applications such as electronic commerce (e-commerce), electronic data interchange (EDI), and several other World Wide Web (Web) applications. Electronic commerce, which is the process of buying, selling, or exchanging products, services, and information via computer networks, has evolved and become an ever-booming enterprise. The advent of broadband digital subscriber line (DSL) and broadband cable has enabled the transmission of data signals through telephone and cable-television (cable-TV) networks. Moreover, broadband technology has made high speed Internet access very affordable for small businesses and individuals. It has also facilitated e-commerce by providing businesses and consumers easy access to the global information super highway. The fact that e-commerce transactions involve the transmission of personal and organization’s proprietary information over the unsecured Internet, make them easy targets for hackers. Therefore, security of electronic communications is a major problem that must be addressed by organizations that engage in e-commerce. This article presents the trends in telecommunications and networking; security problems confronting such technologies and related e-commerce applications; and the management of security issues associated with these technologies.

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Conference papers on the topic "Very high-speed digital subscriber lines"

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Vodrazka, Jiri, Petr Jares, and Jaromir Hrad. "Optimal position of external node for very-high-bitrate digital subscriber line." In 2011 34th International Conference on Telecommunications and Signal Processing (TSP). IEEE, 2011. http://dx.doi.org/10.1109/tsp.2011.6043748.

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Reports on the topic "Very high-speed digital subscriber lines"

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Ray, B., and R. Abbi. Definitions of Managed Objects for Very High Speed Digital Subscriber Lines (VDSL). RFC Editor, 2004. http://dx.doi.org/10.17487/rfc3728.

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Morgenstern, M., S. Baillie, and U. Bonollo. Definitions of Managed Objects for Very High Speed Digital Subscriber Line 2 (VDSL2). RFC Editor, 2009. http://dx.doi.org/10.17487/rfc5650.

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Dodge, M., and B. Ray. Definitions of Managed Object Extensions for Very High Speed Digital Subscriber Lines (VDSL) Using Single Carrier Modulation (SCM) Line Coding. RFC Editor, 2005. http://dx.doi.org/10.17487/rfc4069.

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Dodge, M., and B. Ray. Definitions of Managed Object Extensions for Very High Speed Digital Subscriber Lines (VDSL) Using Multiple Carrier Modulation (MCM) Line Coding. RFC Editor, 2005. http://dx.doi.org/10.17487/rfc4070.

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Sikes, C., B. Ray, and R. Abbi. Definitions of Managed Objects for High Bit-Rate DSL - 2nd generation (HDSL2) and Single-Pair High-Speed Digital Subscriber Line (SHDSL) Lines. RFC Editor, 2005. http://dx.doi.org/10.17487/rfc4319.

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Ray, B., and R. Abbi. Definitions of Managed Objects for High Bit-Rate DSL - 2nd generation (HDSL2) and Single-Pair High-Speed Digital Subscriber Line (SHDSL) Lines Processing. RFC Editor, 2002. http://dx.doi.org/10.17487/rfc3276.

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