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IEEE Communications Magazine

Issue 2 • Date Feb. 1988

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Displaying Results 1 - 6 of 6
  • A model of human communication

    Publication Year: 1988, Page(s):5 - 14
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1102 KB)

    The author argues for a model of human communication in which layers of functions factor the complex activity known as communication. He suggests that by using these levels as a reference model, it might be possible to design human communication systems by factoring the design activity itself, thereby simplifying each step and producing a total system that transfers meaning efficiently between its... View full abstract»

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  • Advanced coherent lightwave technologies

    Publication Year: 1988, Page(s):15 - 21
    Cited by:  Papers (10)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (475 KB)

    The present state of optical coherent communication technologies, covering optical heterodyne/homodyne detection and optical frequency division multiplexing (optimal FDM), is discussed. Included is a description of the development history of coherent lightwave communication technology followed by a discussion of heterodyne detection for future long-haul high-speed systems. A description of optical... View full abstract»

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  • Videotex: advancing to higher bandwidth

    Publication Year: 1988, Page(s):22 - 30
    Cited by:  Papers (3)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (788 KB)

    A description is given of a videotex communications system called Captain, (character and pattern telephone access information network), which has been providing commercial services since November 1984 to all major cities in Japan. HI-Captain, a full-color videotex system for local applications, and Super Captain, a video response system, are also described.<> View full abstract»

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  • Full-duplex data over local loops

    Publication Year: 1988, Page(s):31 - 42
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1003 KB)

    An overview is provided of digital subscriber loops (DSLs), which are an essential part of the evolution from the integrated digital network (IDN) to the integrated services digital network (ISDN). Transmission impairments inherent in the subscriber loops are outlined, and their design is considered. Each of the essential elements in a DSL system is discussed in some detail, with emphasis on the t... View full abstract»

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  • Smart trunk scheduling strategies for future integrated services packet-switched networks

    Publication Year: 1988, Page(s):43 - 50
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (646 KB)

    Trunk scheduling is considered as a means to reallocate delay fairly among various traffic classes and thus reduce the overall network delivery delay of packets. Two service prioritization schemes to accomplish this in integrated services packet switching networks are discussed. These are based on either the total HOP distance (source-destination distance) between the packets' source and destinati... View full abstract»

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  • Diversity protections for digital radio-summary of ten-year experiments and studies

    Publication Year: 1988, Page(s):51 - 63
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1371 KB)

    A summary is presented of a series of critical experiments that led to recent discoveries of large improvement factors for digital radio performance by antenna pattern diversity, antenna angle diversity, frequency diversity, and space diversity. The measured diversity improvement factors for digital radio against multipath dispersive fading are larger than those predicted by the existing analog ra... View full abstract»

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IEEE Communications Magazine, considered by most to be their most important member benefit, provides timely information on all aspects of communications: monthly feature articles describe technology, systems, services, market trends, development methods, regulatory and policy issues, and significant global events.

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Osman Gebizlioglu
Huawei Technologies