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Electronics & Communication Engineering Journal

Issue 5 • Date Oct 1998

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Displaying Results 1 - 11 of 11
  • Planning and operating a fixed radio access network

    Page(s): 221 - 228
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (2652 KB)  

    The case for using radio in the local loop has been well documented, with obvious attractions for both developed and developing countries. Although trial systems of the various technologies exist in many countries throughout the world, operational networks are fewer in number. In June 1996, Ionica launched its service as a public telecommunications operator (PTO) in the UK, using radio in the local loop. This paper describes the experience gained in planning and operating that network. The importance of the access network in maintaining a truly competitive market is discussed. Radio propagation issues are considered, for these play a significant role in the strategic planning of the network, and then in its operational performance. The paper describes the special procedures, and the hardware and software systems, which are required for planning, building and managing the network View full abstract»

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  • Interactive multimedia: from couch potato to nerd?

    Page(s): 241 - 248
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (1620 KB)  

    The viewing figure of 2 billion people who watched the funeral of Diana, Princess of Wales, on TV indicates that the potential market for interactive multimedia services is many times the 60 million or so people who surf the Internet from PCs. However, the various technologies of multimedia are not always easy to use, may not be interoperable or even stable, and, perhaps like telephony over the Internet, can even challenge a computer nerd. Does industry expect a population of couch potatoes to turn into nerds? Surely not. Without total system design at the national level the ease of interoperability needed for early take-up of interactive multimedia technology in health and education may not be achieved View full abstract»

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  • HIPERACCESS: an access system for the information age

    Page(s): 229 - 235
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (1036 KB)  

    This paper introduces the ETSI Project on Broadband Radio Access Networks (EP-BRAN). BRAN systems will be used for local-area applications with limited mobility (HIPERLAN/2); fixed access with area coverage in urban and rural areas (HIPERACCESS); and short-range high-speed point-to-point links (HIPERLINK). They will support transport of either IP or ATM protocols, supporting managed quality of service. Such systems are needed to provide access to the future broadband core networks supporting multimedia applications. The paper focuses on HIPERACCESS. It addresses the motivation and market demand for broadband radio access networks; the objectives and scope of the Project; the operational and technical requirements; the types of networks to be standardised; the scope of the standards; and the issue of spectrum View full abstract»

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  • Wireless local loop: why the slow take up?

    Page(s): 236 - 238
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (424 KB)  

    Wireless access systems have not enjoyed the deployment levels their functionality suggests. Among the reasons for this are their cost, competition from other technologies for investment, uncertainty about their reliability and maturity, and an uncertain regulatory environment. These issues are discussed View full abstract»

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  • Optoelectronics Packaging [Book Reviews]

    Page(s): 239 - 240
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    First Page of the Article
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  • Fixed wireless access: a market and system overview

    Page(s): 213 - 220
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    Amongst the many technological developments of the last few years, one in particular has been directly driven by the liberalisation of the telecommunication services sector and the entry of competition into once monopoly markets. That technology is fixed wireless access (FWA). While traditional telecommunication infrastructures have relied on the use of twisted pair copper wire to deliver services to subscribers-the local loop-FWA replaces this with point-to-multipoint digital wireless links. This paper examines the history of Nortel's involvement as market leader in this sector from its earliest days, the approaches the company has taken to the technologies involved and explores FWA's potential in the world's deregulating telecommunication services market View full abstract»

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  • A comparison of wireless local loop with competing access technologies

    Page(s): 205 - 212
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    It is important to remember that wireless local loop (WLL) is in competition with other fixed access technologies. There are a number of different access techniques which are emerging, including techniques which enhance basic copper cables, such as ISDN and xDSL, new forms of cable, such as coax and fibre, video distribution systems and alternative means of delivering voice and data, such as mobile radio and digital television broadcasting. All these are competing with wireless local loop to provide a convergent service whereby voice, data and television are provided through the same access medium. This paper provides some details about each of the different access technologies, makes predictions about their future success, and examines the likely future of WLL in tomorrow's access technology market-place View full abstract»

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