IEEE Transactions on Communications

Issue 11 • November 1982

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Displaying Results 1 - 14 of 14
  • [Front cover and table of contents]

    Publication Year: 1982, Page(s): 0
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    Freely Available from IEEE
  • Error Rates for Fading NCFSK Signals in an Additive Mixture of Impulsive and Gaussian Noise

    Publication Year: 1982, Page(s):2434 - 2438
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (462 KB)

    The effects of slow and nonselective signal fading on the performance of multilevel noucoherent FSK (NCFSK) systems in an additive mixture of Gaussian and highly impulsive noise are analyzed. For binary systems the bit error rate is derived; forM-ary NCFSK systems upper and lower bounds of the character error probability are obtained. The analysis is performed considering the maximum li... View full abstract»

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  • A Comparison of Block and Convolutional Codes in ARQ Error Control Schemes

    Publication Year: 1982, Page(s):2449 - 2455
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (720 KB)

    ARQ methods of error control can considerably improve the reliablity of data transmission in such areas as satellite communications, computer networks, etc. A number of ARQ schemes using both block and convolutional codes have appeared in the literature. In this paper, the following problem is addressed. Given two different implementations of an ARQ scheme, one using a block code and the other usi... View full abstract»

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  • PePerformance of Coherent M-ary PSK Systems in an Impulsive and Gaussian Noise Environment

    Publication Year: 1982, Page(s):2458 - 2464
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (524 KB)

    The general probability of error expressions of coherentM-ary PSK (M = 2, 4, 8, 16) systems in the presence of both impulsive and Gaussian noise are derived. This work is an extension of our paper related to BPSK and DPSK systems in a complex interference environment [1]. The presented impulsive and Gaussian channel disturbance is a first-order approximation to operational mu... View full abstract»

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  • Calculation of duobinary transmission systems with optical waveguides

    Publication Year: 1982, Page(s):2464 - 2470
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (528 KB)

    A calculation and optimization method for optical waveguide transmission systems using the principle of digital duobinary transmission is presented. Then, systems with duobinary reception and systems with raised-cosine reception, which also need an equalizer at the receiving end, are compared with regard to the energy per single signal required for a tolerable bit error probability. Other criteria... View full abstract»

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  • An Optimal Switching Algorithm for Multibeam Satellite Systems with Variable Bandwidth Beams

    Publication Year: 1982, Page(s):2475 - 2481
    Cited by:  Papers (48)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (696 KB)

    In this paper we consider an SS/TDMA system withMuplink beams andNdownlink beams, where uplink beamihas bandwidth βiand downlink beamjhas bandwidth αj. The maximum traffic which can be handled by the satellite (in any given time slot) is assumed to beK. Multiplexing and demuitiplexing are also assumed. An optima... View full abstract»

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  • Comment on Cochannel intersymbol interference in quadrature modulation systems

    Publication Year: 1982, Page(s): 2482
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (126 KB)

    A question has arisen concerning the similarity of a paper published by M.I. Celebiler and G.M. Coupe (ibid., vol. COM- 26, pp. 257-267, Feb. 1978.) and the above-named one published by the authors (ibid., vol. COM-29, pp. 285-297, Mar. 1981). The first paper considers the problems of cochannel and intersymbol interferences in CPSK systems. In 1981 paper the results of Celebiler and Coupe were ext... View full abstract»

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  • [Back cover]

    Publication Year: 1982, Page(s): 0
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    Freely Available from IEEE
  • Analysis of a Mobile Radio Communication System with Two Types of Customers and Priority

    Publication Year: 1982, Page(s):2470 - 2475
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (472 KB)

    In this paper an analytical method is developed to determine the performance of a system with two types of customers and "cutoff" priority. A completely recursive solution and a solution involving matrix inversion are provided. Some examples from the mobile radio communication system are considered to illustrate applications of the method. This paper is an extension of the case for equal service r... View full abstract»

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  • On the Implementation of a Block Truncation Coding Algorithm

    Publication Year: 1982, Page(s):2482 - 2484
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (304 KB)

    We consider some aspects of a data compression scheme called block truncation coding which are necessarily encountered when the scheme is implemented in practice. We derive an expression used to compute an essential quantity of the algorithm and analyze the effect of perturbing this quantity. Furthermore, we discuss how best to account for the perturbation in the overall scheme. View full abstract»

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  • Exact Asymptotic Behavior of Digital FM Spectra

    Publication Year: 1982, Page(s):2438 - 2449
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (776 KB)

    The problem of calculating accurate power spectral densities for an extended class of digital FM schemes is considered. This extended class includes partial response as well as multilevel schemes. A method suitable for numerical calculation using a computer is developed. This new method consists of two parts. First, the spectral main lobe is calculated. Then, the spectral tail is calculated by a d... View full abstract»

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  • The Complexity of Optimal Addressing in Radio Networks

    Publication Year: 1982, Page(s):2455 - 2457
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (376 KB)

    We consider the complexity of finding optimal fixed- or variable-length unambiguous address codes for the nodes of a packet radio network. For fixed-length codes this problem is proved to be NP-complete, and its complexity for variable-length codes is still unknown. Some suboptimal heuristic algorithms are proposed. View full abstract»

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  • Nonlinear Echo Cancellation of Data Signals

    Publication Year: 1982, Page(s):2421 - 2433
    Cited by:  Papers (137)  |  Patents (17)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1232 KB)

    This paper describes a new technique for implementing an echo canceller for full-duplex data transmission (such as in digital subscriber loops and volceband data sets). The canceller can operate in spite of time-invariant nonlinearities in the echo channel or in the implementation of the echo canceller itself (such as in the D/A converters). The basic structure of the linear echo canceller is not ... View full abstract»

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  • A Collision Resolution Protocol for Random Access Channels with Energy Detectors

    Publication Year: 1982, Page(s):2413 - 2420
    Cited by:  Papers (46)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (832 KB)

    In this paper, we consider the random accessing of a single slotted channel by a large number of packet-transmitting, bursty users. We assume that feedback broadcasting is available where some different information, in addition to the information assumed by the Capetanakis, Gallager, Massey, etc., models, is included in the feedback. In particular, we assume that the existence of energy detectors ... View full abstract»

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Aims & Scope

IEEE Transactions on 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
Naofal Al-Dhahir
University of Texas at Dallas