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IEEE Communications Magazine

Issue 5 • May 1994

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Displaying Results 1 - 7 of 7
  • Hierarchical coding of digital television

    Publication Year: 1994, Page(s):38 - 45
    Cited by:  Papers (41)  |  Patents (25)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1378 KB)

    If the same digital television signal is used for multiple resolutions, bit rates, or transmission and storage mechanisms, then hierarchical coding offers several advantages. The FCC has decided to adopt the "main profile" of MPEG-2 for the video representation of the signal that will be used in the North American terrestrial broadcasting of HDTV. The article examines the tradeoffs of using hierar... View full abstract»

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  • Digital television terrestrial broadcasting

    Publication Year: 1994, Page(s):46 - 52
    Cited by:  Papers (23)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1886 KB)

    Digital transmission will change the way television channels are allocated and will force broadcasters to master a new set of parameters for optimizing service coverage. This article discusses modulation and channel coding issues related to digital television terrestrial broadcasting (DTTB), such as data throughput, spectrum efficiency, single- and multicarrier modulations, interferences under sim... View full abstract»

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  • MPEG coding for variable bit rate video transmission

    Publication Year: 1994, Page(s):54 - 66
    Cited by:  Papers (133)  |  Patents (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2441 KB)

    For real-time transmission of broadcast-quality video on ATM-based B-ISDN, the intraframe to interframe ratio and the quantizer scale are two key parameters that can be used to control a video source in a network environment. Their impact on the traffic characteristics of the coder provides insights into the cell arrival process for an MPEG source. The authors obtain video source models for coders... View full abstract»

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  • An open-systems approach to video on demand

    Publication Year: 1994, Page(s):68 - 80
    Cited by:  Papers (87)  |  Patents (160)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1758 KB)

    Open systems will enable video servers and set-tops to provide different services in a variety of environments. Hewlett-Packard is interested in applying the principles of open systems to video on demand (VOD). In particular, the company is developing a technology base that will allow their servers and set-tops to operate in a variety of environments and enable the provision of a variety of servic... View full abstract»

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  • Interactive video on demand

    Publication Year: 1994, Page(s):82 - 88
    Cited by:  Papers (106)  |  Patents (64)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1256 KB)

    Video on demand (VOD)/spl minus/likely to become one of the most successful services in the emerging broadband network/spl minus/must minimize bandwidth requirements to serve large numbers of users. This article describes two VOD service variants, whereby bandwidth requirements in the network are reduced, while keeping the quality of service (QoS) at an equally high level.<> View full abstract»

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  • Baseband and passband transport systems for interactive video services

    Publication Year: 1994, Page(s):90 - 101
    Cited by:  Papers (23)  |  Patents (23)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1785 KB)

    As essentially none of the existing telecommunication networks are capable of providing interactive video services (IVS), network providers have begun to consider the network architecture that is best to deploy. Two approaches have received most of the consideration. Because of the embedded base of broadcast, coax-based cable TV networks and because of the unconfirmed demand for IVS, much attentio... View full abstract»

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  • Applicability of ADSL to support video dial tone in the copper loop

    Publication Year: 1994, Page(s):102 - 109
    Cited by:  Papers (48)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1263 KB)

    An ADSL-3 architecture providing a downstream payload above 6 Mb/s has been proposed for operation over carrier serving area (CSA) loops. To determine whether such a system can be reliably deployed in the telephone company copper loop plant, a detailed model for loops and noise is presented. Results show that a sophisticated system, including echo cancellation and trellis coding, can reliably achi... 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