Electronics & Communication Engineering Journal
Volume 12, Issue 3, June 2000
Volumes & issues:
Volume 12, Issue 3
June 2000
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- Source: Electronics & Communication Engineering Journal, Volume 12, Issue 3,
- DOI: 10.1049/ecej:20000309
- Type: Article
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- Source: Electronics & Communication Engineering Journal, Volume 12, Issue 3, p. 90 –91
- DOI: 10.1049/ecej:20000301
- Type: Article
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- Source: Electronics & Communication Engineering Journal, Volume 12, Issue 3, page: 92 –92
- DOI: 10.1049/ecej:20000302
- Type: Article
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- Author(s): K.W. Richardson
- Source: Electronics & Communication Engineering Journal, Volume 12, Issue 3, p. 93 –100
- DOI: 10.1049/ecej:20000303
- Type: Article
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The Universal Mobile Telecommunications System (UMTS) as specified by the Third Generation Partnership Project (3GPP) was formally adopted by the ITU as a member of its family of IMT-2000 Third Generation Mobile Communication standards in November 1999. This paper provides some background to the UMTS standard and an overview of the system architecture. Some information about the current status of technology trials is provided as well as predictions for the services that future UMTS networks are likely to deliver to the end user. - Author(s): S. Dehghan ; D. Lister ; R. Owen ; P. Jones
- Source: Electronics & Communication Engineering Journal, Volume 12, Issue 3, p. 101 –118
- DOI: 10.1049/ecej:20000304
- Type: Article
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Third generation (3G) mobile networks are due to become reality in the next few years as governments world-wide start to auction or `release' new spectrum to new and existing cellular operators. A major differentiation of 3G over second generation networks is the provision of multiple-data-rate services, higher spectrum efficiency and greater flexibility of the air interface. This paper addresses FDD W-CDMA planning and capacity estimation issues. As well as addressing the planning steps, link budgets and simplistic uplink capacity estimation the paper goes into more detail on simulation methods and considerations. Finally an example W-CDMA network, based on realistic site locations in central London, is provided. Capacity estimations are given with some indications of network stability and operating points. - Author(s): M. Short
- Source: Electronics & Communication Engineering Journal, Volume 12, Issue 3, p. 119 –122
- DOI: 10.1049/ecej:20000305
- Type: Article
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As the introduction of third generation (3G) mobile communications systems is expected to be evolutionary rather than revolutionary it is vital to establish a solid business case for 3G. The old business model of `coverage, coverage, coverage' will evolve to one of `capacity, capability and content' and a thorough evaluation will have to be made of the volume of expected usage, the value that customers will expect for their money and the variety of services that can be offered. The author discusses the business case for 3G and concludes that it will have to embrace `my generation' thinking, i.e. the need for equipment and services to be personalised. - Author(s): Y.J. Guo ; S. Vadgama ; Y. Tanaka
- Source: Electronics & Communication Engineering Journal, Volume 12, Issue 3, p. 123 –132
- DOI: 10.1049/ecej:20000306
- Type: Article
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To achieve high capacity and to support high-data-rate services in the terrestrial access network (UTRAN) of the third generation Universal Mobile Telecommunications System (UMTS), it is essential to employ some advanced transceiver techniques at the base stations. Three such techniques are presented: adaptive antennas, multistage parallel interference cancellers and a new hybrid scheme. The operation principles and some simulation results of the techniques are given and some challenging implementation issues are discussed. - Author(s): A.G. Spilling ; A.R. Nix ; M.A. Beach ; T.J. Harrold
- Source: Electronics & Communication Engineering Journal, Volume 12, Issue 3, p. 133 –147
- DOI: 10.1049/ecej:20000307
- Type: Article
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The concept of self-organisation in wireless networks is introduced. The paper proposes planning and deployment cost, capacity, coverage, flexibility and future potential as the criteria by which wireless topologies and resource management strategies should be validated. It discusses numerous techniques that can be considered as self-organising and evaluates the suitability of these techniques in both macro- and microcellular environments. A standard 4-carrier GSM base station is used as the reference cellular technology. It is demonstrated that, by combining suitable techniques, a potential future capacity increase of one order of magnitude (13 times) is estimated in a microcellular environment. Substantial capacity increments can also be achieved in macrocellular networks. When the cost of both planning and deployment is considered, intelligent relaying together with environment adaptation are shown to perform well and could reduce the cost of future networks to a tenth of their current level. - Author(s): H. Aghvami and B. Jafarian
- Source: Electronics & Communication Engineering Journal, Volume 12, Issue 3, p. 148 –152
- DOI: 10.1049/ecej:20000308
- Type: Article
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A vision is presented for a fully IP-based mobile network which goes beyond UMTS/IMT-2000. A top-to-bottom design approach is introduced that is capable of offering new and innovative services and applications to both fixed and mobile users efficiently, cost effectively and in a user-friendly manner. Some issues and examples in the design steps following this new approach are discussed. It is clearly shown that the convergence of mobile and fixed networks will be achieved naturally through the use of an `all IP' based solution for both access and core networks.
Calendar
Third generation mobile: An exciting challenge
Principal abbreviations used in this issue
UMTS overview
W-CDMA capacity and planning issues
My generation
Advanced base station technologies for UTRAN
Self-organisation in future mobile communications
A vision of UMTS/IMT-2000 evolution
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