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IEEE Journal on Selected Areas in Communications

Issue 2 • Date March 1985

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Displaying Results 1 - 19 of 19
  • [Back cover]

    Publication Year: 1985, Page(s): 0
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    Freely Available from IEEE
  • [Front cover and table of contents]

    Publication Year: 1985, Page(s): 0
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    Freely Available from IEEE
  • Foreword: Wide-Band Local Access

    Publication Year: 1985, Page(s):253 - 254
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    Freely Available from IEEE
  • Characterization of Cable TV Networks as the Transmission Media for Data

    Publication Year: 1985, Page(s):255 - 265
    Cited by:  Papers (5)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1058 KB)

    Two-way cable television (CATV) networks have been developed over a period of a dozen years or so with the express purpose of serving as the transmission medium for a variety of duplex data communications services for home and business. Unfortunately, many CATV engineers have only a rudimentary understanding of encoded transmission theory and practice, and almost no experience with the terminology... View full abstract»

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  • VLSI in Communications

    Publication Year: 1985, Page(s):345 - 346
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    First Page of the Article
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  • A High Performance LSI Digital Signal Processor for Communication

    Publication Year: 1985, Page(s):347 - 356
    Cited by:  Papers (5)  |  Patents (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1670 KB)

    This paper describes a newly developed CMOS LSI DSP (FDSP3). It has a powerful multiplier, which operates at a rate of 10 M-operations/s, almost twice as fast as the fastest existing LSI DSP's. Some key techniques to attain these high performance characteristics of the DSP are described. Suitable memory capacities of the RAM and ROM were analyzed as a function of the operational capability of the ... View full abstract»

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  • A Microprocessor for Speech Recognition

    Publication Year: 1985, Page(s):369 - 376
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (878 KB)

    A new single-chip microprocessor for speech recognition, the SRP, has been developed, utilizing a multiprocessor architecture and a pipelined structure. It can recognize up to 340 isolated words or 40 connected words in real time. The SRP contains a vector distance calculator, a DP-equation calculator, and an I/O controller operating in a pipelined manner. Algorithm variations and operation parame... View full abstract»

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  • Architecture Design of a High-Quality Speech Synthesizer Based on the Multipulse LPC Technique

    Publication Year: 1985, Page(s):377 - 383
    Cited by:  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (668 KB)

    This paper describes an architectural design of a high-quality speech synthesizer based on the multipulse linear predictive coding technique. The algorithms implemented in the design are derived. The main features of the synthesizer are a multiprocessor architecture, real time operation, \mu-/A -law coded PCM output, flexible system interface, relative ease o... View full abstract»

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  • The Future Impact of GaAs Digital IC's

    Publication Year: 1985, Page(s):384 - 393
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (888 KB)

    A review of digital GaAs IC technology and an assessment of its future impact on gigabit signal processing is presented. High-speed signal processing and computers will require MSI-complexity interface circuits capable of 1-10 GHz clock frequencies and LSI-complexity digital circuits operating in the 0.2-5 GHz range at tens of microwatts per gate. A wide range of applications exists for frequency ... View full abstract»

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  • Design and Architecture of the High-Speed Digital Data Transmission System in NTT

    Publication Year: 1985, Page(s):292 - 299
    Cited by:  Papers (8)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (784 KB)

    Demand for high-speed wide-band telecommunication services is rapidly growing due to the remarkable progress in office, factory, and laboratory automation. These services are expected to be first introduced in leased circuits and then extended, to high-speed switched services. This paper presents the users' demands for such high-speed services and the NTT design concepts for the high-speed digital... View full abstract»

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  • Data Transmission Implementation on Broad-Band Networks

    Publication Year: 1985, Page(s):266 - 272
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (800 KB)

    Broad-band networks present many advantages for the implemention of data transmission circuits. Whereas communication system concepts are universally applicable, there are many unique details and practial considerations involved in design and operation of broad-band networks. This paper describes broad-band configurations and their system design implications and includes a discussion of current mo... View full abstract»

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  • System Aspects and Realization of Wide-Band Switching in the Local Area

    Publication Year: 1985, Page(s):330 - 335
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (656 KB)

    This paper discusses the functional components of nodes in wide-band switching networks. Emphasis is given to the local area where the system's architecture can be considerably simplified. The experimental results are related to this type of application. They demonstrate the availability of all system components for medium-size systems (up to 240 lines). A 16 × 16 highly integrated switch is ... View full abstract»

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  • On the Design of a High-Performance LSI Circuit Digital Signal Processor for Communication

    Publication Year: 1985, Page(s):357 - 368
    Cited by:  Papers (1)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1000 KB)

    This paper describes the design of a highly efficient CMOS LSI circuit digital signal processor (FDSP3). To realize an operating cycle rate of 10 MHz and a throughput rate of 0.6 μs per second-order filter section, considerable care has been paid to the design of software structures and hardware circuitry. Basic program routines and some application examples are also shown. These examples ill... View full abstract»

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  • Introduction of Wide-Band Communications in the Telecommunications Network

    Publication Year: 1985, Page(s):286 - 291
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (632 KB)

    An increasing demand for digital wide-band business communications has been emerging as a new driving force in the evolution of the telecommunication network. In parallel with this demand, new transmission, multiplexing, and switching technologies are becoming available to support the implementation of attractive end-to-end wide-band services. This paper looks at the application opportunities of w... View full abstract»

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  • Optoelectronic Switching in Digital Networks

    Publication Year: 1985, Page(s):336 - 344
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (976 KB)

    The use of optoelectric switching matrices in digital networks is examined. The possibility of large very compact arrays is demonstrated. Design considerations are discussed for a switching node for broad-band digital signals at rates of 100 and 500 Mbits/s, with 100 inputs and 103outputs. A novel feature of optoelectronic switching is that power consumption tends to scale approximately... View full abstract»

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  • Voice and Data on a CATV Network

    Publication Year: 1985, Page(s):300 - 311
    Cited by:  Papers (23)  |  Patents (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1240 KB)

    A technique for transmitting voice and data on a conventional subsplit CATV network is described. The technique uses a variation on the carrier sense multiple access/collision detection protocol used in local area networks. A variation on this protocol, called movable slot TDM allows periodic voice Sources to share this network without distorting the voice signal. A scheme for sharing frequency sp... View full abstract»

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  • Distributed Switching for Data Transmission over Two-Way CATV

    Publication Year: 1985, Page(s):323 - 329
    Cited by:  Papers (5)  |  Patents (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (624 KB)

    Most of tile present approaches to two-way interactive CATV focus on the centralized approach, in which all traffic must travel to the CATV head end. In this paper, we present a distributed approach, in which intelligent store-and-forward packet switches are to be installed at various locations on the cable. The analysis emphasizes three main criteria: the maximum traffic flow on the cable, the th... View full abstract»

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  • The Development of Cable Data Communications Standards

    Publication Year: 1985, Page(s):273 - 285
    Cited by:  Papers (10)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1288 KB)

    Commercially successful application of data communications technology to coaxial cable distribution networks requires the creation of systems useful to large numbers of subscribers sharing common communications procedures. Furthermore, it is desirable, particularly in entertainment CATV networks, that subscriber ownership of some or all terminal equipment and peripheral attachments be possible sin... View full abstract»

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  • Spread Spectrum Access in Two-Hop CATV Data Networks

    Publication Year: 1985, Page(s):312 - 322
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (920 KB)

    A technique for data transmission over a CATV network, structured in a two-hop configuration, is presented. The technique combines the use of random access over the outer hop (distribution branches) and spread spectrum over the inner hop (main trunk) to maximize the CATV network throughput. A model is constructed for the spread spectrum access strategy. The throughput-delay relationship is obtaine... View full abstract»

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Aims & Scope

IEEE Journal on Selected Areas in Communications focuses on all telecommunications, including telephone, telegraphy, facsimile, and point-to-point television, by electromagnetic propagation.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Muriel Médard
MIT