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IEE Colloquium on Antennas and Propagation for Future Mobile Communications (Ref. No. 1998/219)

23 Feb 1998

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Displaying Results 1 - 14 of 14
  • Microcellular planning based on information from the radio network

    Publication Year: 1998, Page(s):8/1 - 8/8
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (620 KB)

    This paper describes a novel approach to designing microcells in GSM radio networks. The proposed approach is based on a two-stage process. At the first stage, the most suitable location for a microcell is determined, while during the second stage the least interfered channel for the microcell is established. The novelty of the suggested method lies in the fact that information provided by the rad... View full abstract»

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  • The STORMS project: an antennas and propagation perspective

    Publication Year: 1998, Page(s):1/1 - 1/5
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (392 KB)

    The article presents an overview of the functionality of the STORMS planning tool from an antennas and propagation perspective, with particular emphasis on novel integral equation methods used in propagation modelling. The STORMS prototype propagation tool is an advanced and versatile body of object oriented software. It provides the developer with an open environment facilitating the incorporatio... View full abstract»

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  • Characterising the radio propagation channel

    Publication Year: 1998
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (56 KB)

    Summary form only given. Optimising the designs of new cellular radio products requires a detailed understanding of the radio propagation characteristics of the transmission paths between mobiles or fixed subscriber terminals and base stations. The performance of a radio network in terms of coverage or capacity critically depends on factors such as path loss, multipath delay and angle spread and f... View full abstract»

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  • A ray tracing approach to predicting indoor field distributions

    Publication Year: 1998, Page(s):6/1 - 6/4
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (204 KB)

    The last decade has seen an unprecedented growth in the use of mobile radio services both in the UK and overseas. This development has been aided by much research interest in the field of mobile telephony. The radio environment is unfortunately a complex and somewhat hostile one for application of broadband systems. The received signal typically arrives via many separate paths arising from reflect... View full abstract»

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  • TSUNAMI (II)-initial field trial results [macrocellular radio]

    Publication Year: 1998, Page(s):9/1 - 9/6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (404 KB)

    The TSUNAMI (II) (Technology in Smart antennas for UNiversal Advanced Mobile Infrastructure-Part 2) project is on investigation into the application of adaptive antenna technology for use in future generation mobile communications systems. The key aims of the project are to study the complexity versus increase in system capacity and coverage extension that can be achieved over the existing, non-ad... View full abstract»

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  • Propagation activities in the Mobile VCE

    Publication Year: 1998, Page(s):2/1 - 2/6
    Cited by:  Papers (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (500 KB)

    The Mobile VCE (Virtual Centre of Excellence in Mobile and Personal Communication) represents a new approach to collaborative research, permitting industry and academia to work together in partnership to innovate for the future of mobile radio systems. As part of the Mobile VCE, the Radio Environment Work Area will produce propagation measurements and models of parameters which have been little st... View full abstract»

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  • The effect of sub-optimal base station positioning on the performance of a cellular network

    Publication Year: 1998, Page(s):7/1 - 7/6
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (404 KB)

    This paper discusses some aspects of self organisation in future cellular communications. In particular the effect sub-optimal base station positioning has on the overall interference level in the network. It is shown that the interference increases as the BS positioning error becomes more severe. The dropping probability becomes unacceptable as a the error increases. With the incorporation of a s... View full abstract»

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  • IEE Colloquium on Antennas and Propagation for Future Mobile Communications (Ref. No.1998/219)

    Publication Year: 1998
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (124 KB)

    The following topics were dealt with: STORMS project antennas and propagation perspective; mobile VCE; indoor coverage; microcellular handover signalling; integrated deterministic urban/rural model; ray tracing for indoor field distributions prediction; cellular network sub-optimal base station positioning; microcellular planning; TSUMANI II field trial results; 5 GHz channel characterisation; ada... View full abstract»

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  • 5 GHz indoor channel characterization: measurements and models

    Publication Year: 1998, Page(s):10/1 - 10/6
    Cited by:  Papers (2)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (352 KB)

    The advent of the HIPERLAN standard in Europe and the emergence of the U-NII bands in the USA allow the development of high bit-rate (>20Mbps) indoor wireless products at 5 GHz. The home is a fertile application ground for such technology. This has prompted the need to investigate the domestic indoor wireless propagation environment at 5 GHz. From measurements in houses, two empirical models we... View full abstract»

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  • Indoor coverage requirements and solutions

    Publication Year: 1998, Page(s):3/1 - 3/4
    Cited by:  Papers (2)  |  Patents (1)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (340 KB)

    Mobile phones are already becoming a part of everyday life. Subscribers expect to be able to use their handsets everywhere. A key factor in the success of a cellular operator therefore is the ability to fulfil subscribers' expectations in terms of coverage. Hence, dedicated indoor coverage is required where the signal from outdoor cells is weak or where additional capacity is needed. Indoor covera... View full abstract»

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  • The use of adaptive antennas for cellular subscriber location experimental results

    Publication Year: 1998, Page(s):11/1 - 11/7
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (608 KB)

    This paper presents the results of an adaptive antenna measurement platform for PCS1800 frequency division duplex operation. A description of the measurement site in central London, UK is followed by a brief note on the data available and used for post-processing in this paper. Frequency division duplex operation is analysed in terms of the estimated peak-energy spectral energy density `look-direc... View full abstract»

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  • Efficient handover signalling for microcellular environments using packet access mechanism

    Publication Year: 1998, Page(s):4/1 - 4/9
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (516 KB)

    Future microcellular systems will require distributed network architecture and decentralised control to manage the large number of inter-cell handovers associated with the mobility of wireless terminals. Packet networks with autonomous routing and mobile initiated handovers represent the appropriate architecture for microcellular networks. A new handover strategy for microcellular environments is ... View full abstract»

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  • Exploiting the spatial domain for high bit rate indoor communications

    Publication Year: 1998, Page(s):12/1 - 12/6
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (400 KB)

    The ACTS AWACS (ATM Wireless Access Communications Systems) project is considering the feasibility of supporting ATM compatible bit rates over the wireless bearer for low mobility terminals using directional antenna technology. The viability of directional antennas as an alternative to equalisation and multicarrier techniques is studied by employing pre-prototype hardware supplied by NTT Wireless ... View full abstract»

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  • An integrated deterministic urban/rural propagation model

    Publication Year: 1998, Page(s):5/1 - 5/7
    Cited by:  Patents (3)
    IEEE is not the copyright holder of this material | Click to expandAbstract | PDF file iconPDF (484 KB)

    Cochannel interference is one of the major causes of signal quality degradation in a radio link, and the challenge to the cellular network planner is to deploy the network in a manner that maximises the carrier to interference ratio (C/I) for each cell. To this end, most network planners make use of computer propagation prediction models, which predict signal strength in the radio environment. Thi... View full abstract»

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