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IEEE Personal Communications

Issue 2 • Apr 2001

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Displaying Results 1 - 6 of 6
  • Convergence of cellular and broadcast networks from a multi-radio perspective

    Publication Year: 2001, Page(s):51 - 56
    Cited by:  Papers (27)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (112 KB)

    The demand of both the new telecom industry and digital broadcasters for cost-efficient provisioning of mobile multimedia services faces the reality of scarce radio resources. Various digital mobile and broadcast radio technologies have been developed and specifically been optimized. However, existing and emerging multimedia services exhibit challenging requirements in terms of asymmetry, interact... View full abstract»

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  • A synchronized radio system without stable clock sources

    Publication Year: 2001, Page(s):45 - 50
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (96 KB)

    Synchronization is a vital process for mobile system operations. Yet, in practice, it is not always convenient to derive timing information from stable clock sources. We discuss the inter-base-station timing mechanisms evolved for the two third-generation system proposals CDMA2000 and WCDMA. From the discussion, we review the merits and limitations of both approaches and highlight an alternative m... View full abstract»

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  • CMU wearable computers for real-time speech translation

    Publication Year: 2001, Page(s):6 - 12
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (148 KB)

    Carnegie Mellon's Wearable Computers Laboratory has built four generations of real-time speech translation wearable computers, culminating in the Speech Translator Smart Module. Smart Modules use a family of interoperable modules supporting real-time speech recognition, language translation, and speech synthesis. We examine the effect of various design factors on performance with emphasis on modul... View full abstract»

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  • Simultaneous voice and data operation for GPRS/EDGE: class A dual transfer mode

    Publication Year: 2001, Page(s):14 - 29
    Cited by:  Papers (8)  |  Patents (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (156 KB)

    Class A dual transfer mode of GPRS/EDGE operation addresses barriers in the migration path from the so-called 2.5G services offered by GSM to similar ones offered by UMTS and the ability to offer users a reasonably priced service that combines voice and data interchange capabilities with a low-cost mobile station View full abstract»

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  • Enhanced random access and reservation scheme in CDMA2000

    Publication Year: 2001, Page(s):30 - 36
    Cited by:  Papers (7)  |  Patents (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (104 KB)

    The growing demand for high-speed packet data services and multimedia applications over mobile personal communication networks has set new design requirements and objectives for the next generation of air interface protocols. The asymmetric and bursty nature of multimedia packet data traffic, and the variability of data rates, packet sizes, and quality of service requirements make conventional voi... View full abstract»

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  • On the use of HALE platforms as GSM base stations

    Publication Year: 2001, Page(s):37 - 44
    Cited by:  Papers (13)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (128 KB)

    We consider several issues regarding the use of a stratospheric, solar-powered, unmanned aerial vehicle named the Helios Platform (HeliPlat) as a mobile communications base station. This platform is currently being designed at Politecnico di Torino within the HeliNet project funded by the European Commission. The major potential of such a platform as a cellular base station is that it represents a... View full abstract»

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Aims & Scope

This Magazine ceased publication in 2001. The current retitled publication is IEEE Wireless Communications.

Full Aims & Scope