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IEEE Communications Magazine

Issue 7 • July 1994

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Displaying Results 1 - 9 of 9
  • Cyberjustice: patent infringement

    Publication Year: 1994, Page(s):14 - 15
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    There are intangible factors that make it difficult to predict the ultimate outcome of any given patent litigation. The key analysis for any infringement action must include an examination of infringement (literal or under the doctrine of equivalents), laches, validity, and damages. The author pinpoints critical "tips" that may help engineers and corporate management determine the likelihood of su... View full abstract»

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  • Simulation of communication systems

    Publication Year: 1994, Page(s):26 - 35
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2315 KB)

    When both a complex system and a complex channel model are encountered, the result is typically a design or analysis problem that cannot be solved using traditional (pencil and paper) mathematical analysis. Computer-aided techniques, which usually involve some level of numerical simulation, can be a very valuable tool in these situations. The purpose of this article is to provide a tutorial review... View full abstract»

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  • Simulation and implementation tools for signal processing and communication systems

    Publication Year: 1994, Page(s):36 - 40
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (788 KB)

    It is now possible to move easily from a top-level simulation model of a system toward its implementation. While this path is seamless and nearly complete for the digital implementation, gaps still exist for the implementation of RF and optical portions of communication systems. The author describes the state of the art in waveform (or functional) level simulation tools for communication and signa... View full abstract»

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  • Simulation issues for future wireless modems

    Publication Year: 1994, Page(s):42 - 53
    Cited by:  Papers (19)  |  Patents (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2372 KB)

    Mobile communication systems present several design challenges that stem from the mobility of users throughout the system and the time-varying multipath channel and interference. To address these challenges, future wireless modems will rely on performance enhancing techniques such as adaptive antennas, DSP-based interference rejection techniques, and real-time signal processing for capacity improv... View full abstract»

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  • Multi-quantum well lasers for telecommunications

    Publication Year: 1994, Page(s):54 - 60
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1292 KB)

    Multi-quantum wells (MQW) show unique properties that ample exploitation of the optical fiber potential for telecommunications. The aim of this article is to show how MQW lasers can effectively match as well as forecast a variety of telecommunications needs, ranging from high performance fiber optic transmission systems to very low-cost applications, by exploiting the enormous flexibility and the ... View full abstract»

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  • Integrated-optics planar components

    Publication Year: 1994, Page(s):62 - 67
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1215 KB)

    Optical fiber architectures of the future are envisioned to employ extensive splitting of optical signals, as well as multiple wavelength division multiplexing and demultiplexing. These architectures and networks have motivated the development and commercialization of today's planar passive components. Beyond and including these applications, the prospects for new and exciting uses of planar devic... View full abstract»

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  • Numbering in a competitive environment

    Publication Year: 1994, Page(s):68 - 70
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (393 KB)

    The role of numbering in the provision of telecommunications has changed substantially since the introduction of competition in the provision of service. This article looks at the changes that have been driven by competition and some examples of the problems caused by a lack of clear public policy direction, and suggests a method in order to proceed to resolve this deficiency.<> View full abstract»

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  • A network architecture for a geostationary communication satellite

    Publication Year: 1994, Page(s):72 - 84
    Cited by:  Papers (5)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3708 KB)

    An M-VSAT communication system envisioned by NASA would provide low data rate, direct-to-the-user communications services for interactive data, voice, facsimile, and video conferencing. Such a system would enhance current communications services and enable new services.<> View full abstract»

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  • Standardization of network technologies and services

    Publication Year: 1994, Page(s):86 - 91
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1400 KB)

    The relationships between standards organizations is expected to change as service boundaries rapidly become vague and media become unified. The collaboration between these organizations and the generation of common texts on recommendations/standards has already begun. This report surveys several standardization activities that have been focusing on new trends in telecommunication technologies and... View full abstract»

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Aims & Scope

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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Meet Our Editors

Editor-in-Chief
Osman Gebizlioglu
Huawei Technologies