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Proceedings of the IEEE

Issue 9 • Date Sep 1994

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Displaying Results 1 - 7 of 7
  • Performance aspects of the GSM radio subsystem

    Publication Year: 1994, Page(s):1449 - 1466
    Cited by:  Papers (13)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1308 KB)

    Cellular telecommunication networks provide a location independent access to telecommunication services of the various fixed public wide-area networks. In the first part of the paper, an overview of the service requirements and the network architecture of the new services-integrated digital GSM system is given. In the second part, the characteristics of the radio interface organization are present... View full abstract»

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  • Wireless data communications

    Publication Year: 1994, Page(s):1398 - 1430
    Cited by:  Papers (90)  |  Patents (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3216 KB)

    Wireless data services and systems represent a rapidly growing and increasingly important segment of the communications industry. In the paper the authors present an overview of this field, emphasizing three major elements: (1) technologies utilized in existing and currently planned wireless data services, (2) issues related to the performance of these systems, and (3) discernible trends in the co... View full abstract»

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  • Mobile satellite communications

    Publication Year: 1994, Page(s):1431 - 1448
    Cited by:  Papers (60)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1652 KB)

    The paper presents an up-to-date overview as well as new results on mobile satellite communications. Specifically, the following subjects are addressed: worldwide activities; satellite orbits; multiple access techniques; Novstar global positioning system; economic and regulatory issues; future trends. Some of these technical and nontechnical subjects appeal disjoint, but they are unique and signif... View full abstract»

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  • Microcellular communication systems with hierarchical macrocell overlays: traffic performance models and analysis

    Publication Year: 1994, Page(s):1383 - 1397
    Cited by:  Papers (87)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1288 KB)

    A hierarchical overlaid scheme suitable for high-capacity microcellular communications systems is considered as a strategy to achieve high system performance and broad coverage. High-teletraffic areas are covered by microcells while overlaying macrocells cover low-teletraffic areas and provide overflow groups of channels for clusters of microcells. New calls and handoff calls enter at both the mic... View full abstract»

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  • Traffic engineering of the radio interface for cellular mobile networks

    Publication Year: 1994, Page(s):1371 - 1382
    Cited by:  Papers (46)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1124 KB)

    The paper reviews traffic-related issues in the operation of the radio interface in cellular mobile networks operating with FDMA, TDMA, or CDMA technology. The emphasis is on issues which affect the traffic performance of the network, rather than on transmission technology, or transmission quality measures such as bit error rate. The author reviews the important traffic performance measures for ce... View full abstract»

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  • Multiple access in wireless digital networks

    Publication Year: 1994, Page(s):1360 - 1370
    Cited by:  Papers (81)  |  Patents (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (968 KB)

    General principles for the design of a multiple-access system for large numbers of terminals transmitting to a single hub station are discussed. The importance of understanding the nature of the traffic to be carried by the network is emphasized. After some discussion of multiple access options for steady traffic and for slowly varying traffic, the use of random-access protocols for rapidly varyin... View full abstract»

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  • UHF propagation prediction for wireless personal communications

    Publication Year: 1994, Page(s):1333 - 1359
    Cited by:  Papers (149)  |  Patents (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2488 KB)

    Propagation characteristics of radio signals in the UHF band place fundamental limits on the design and performance of wireless personal communications systems, such as cellular mobile radio (CMR), wireless LANs, and personal communication services (PCS). Because the radio link is direct to each subscriber, the prediction of signal characteristics is most important in urban areas where subscriber ... View full abstract»

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North Carolina State University