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IEEE Transactions on Communications

Issue 2 • February 1986

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Displaying Results 1 - 16 of 16
  • [Front cover and table of contents]

    Publication Year: 1986, Page(s): 0
    Request permission for commercial reuse | PDF file iconPDF (183 KB)
    Freely Available from IEEE
  • Discrimination Against Partially Overlapping Interference - Its Effect on Throughput in Frequency-Hopped Multiple Access Channels

    Publication Year: 1986, Page(s):136 - 142
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (744 KB)

    In this paper we derive the probability of correct packet reception and the resulting channel throughput achievable in an asynchronous slow-frequency-hopped multiple user channel. Reed-Solomon coding is used to correct errors caused by other-user interference in an otherwise noiseless channel. We analyze and evaluate anM-ary FSK signaling scheme, which permits the discrimination against... View full abstract»

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  • Resequencing of messages in communication networks

    Publication Year: 1986, Page(s):143 - 149
    Cited by:  Papers (46)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (542 KB)

    In this paper we study a message resequencing problem in a store-and-forward computer network where messages may go out of order while traversing logical channels. The logical channels are assumed to consist of multiple physical links which may be of different capacities. A message is dispatched to the fastest available link. Resequencing methods suggested in the literature [3] (resequencing at th... View full abstract»

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  • Recursive Block Coding - A New Approach to Transform Coding

    Publication Year: 1986, Page(s):161 - 179
    Cited by:  Papers (35)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5299 KB)

    The concept of fast KL transform coding introduced earlier [7], [8] for first-order Markov processes and certain random fields has been extended to higher order autoregressive (AR) sequences and practical images yielding what we call recursive block coding (RBC) algorithms. In general, the rate-distortion performance for these algorithms is significantly superior to that of the conventional block ... View full abstract»

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  • Comments on "A Fast Computational Algorithm for the Discrete Sine Transform"

    Publication Year: 1986, Page(s):204 - 205
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (203 KB)

    Two major errors contained in the referred paper are pointed out. Reference of a new algorithm for the discrete sine transform is given. View full abstract»

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  • [Back cover]

    Publication Year: 1986, Page(s): 0
    Request permission for commercial reuse | PDF file iconPDF (314 KB)
    Freely Available from IEEE
  • Asymptotically Optimum Space-Diversity Detection in Non-Gaussian Noise

    Publication Year: 1986, Page(s):97 - 103
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB)

    The theory of asympoticalllly optimum detection in nonGaussian noise is considered to synthesize a space-diversity structure for the noncoherent detection of a bandpass signal subject to amplitude fluctuations. An asymptotic sufficient statistic is obtained for arbitrary fading laws on the diversity branches and, then, for Rayleigh-distributed amplitude fluctuations, the asymptotically optimum det... View full abstract»

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  • Simulation of TV Transmission Over the Communications Satellite Channel

    Publication Year: 1986, Page(s):188 - 199
    Cited by:  Papers (4)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1128 KB)

    Time-domain simulation is used to evaluate NTSC and multiplexed analog component (MAC) television transmission over the Communications satellite channel using analog frequency modulation. The simulation program is used to measure transmission impairments caused by thermal noise, distortion resulting from spectral truncation by the band-limited channel, AM-to-PM conversion in the satellite TWTA, an... View full abstract»

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  • Performance Analysis of the Selective Repeat ARQ Protocol

    Publication Year: 1986, Page(s):127 - 135
    Cited by:  Papers (79)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (848 KB)

    Delay, queue length, and throughput are the main performance characteristics of a data transmission system with ARQ (automaticrepeat-request) error control. Various protocols which have been proposed use, as a part or as a whole, the basic selective-repeat ARQ protocol. Their performance analysis has, however, been restricted to the throughput characteristics. An easily applicable method to analyz... View full abstract»

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  • Exact and Approximate Construction of Digital Phase Modulations by Superposition of Amplitude Modulated Pulses (AMP)

    Publication Year: 1986, Page(s):150 - 160
    Cited by:  Papers (419)  |  Patents (35)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (792 KB)

    Minimum shift keying and offset QPSK are two well-known modulations which can be interpreted as a set of time/phase-shifted AM pulses. We show in this paper that any constant amplitude binary phase modulation can also be expressed as a sum of a finite number of time limited amplitude modulated pulses (AMP decomposition). New methods for computing autocorrelation and power frequency spectrum are de... View full abstract»

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  • Heterodyne Spatial Tracking System for Optical Space Communication

    Publication Year: 1986, Page(s):118 - 126
    Cited by:  Papers (4)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (912 KB)

    Design considerations for an optical spatial tracking system for both coherent and noncoherent heterodyne detection are addressed. Heterodyne detection systems are much less susceptible to background radiation and device noise than conventional direct detection systems. In addition, the angle discriminator profile in a heterodyne detection system can be tailored via the local oscillator spatial di... View full abstract»

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  • On Tail Biting Convolutional Codes

    Publication Year: 1986, Page(s):104 - 111
    Cited by:  Papers (137)  |  Patents (49)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (784 KB)

    In this paper, we introduce generalized tail biting encoding as a means to ameliorate the rate deficiency caused by zero-tail convolutional encoding. This technique provides an important link between quasi-cyclic block and convolutional codes. Optimum and suboptimum decoding algorithms for these codes are described and their performance determined by analytical and simulation techniques. View full abstract»

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  • Image Compression Using Adaptive Vector Quantization

    Publication Year: 1986, Page(s):180 - 187
    Cited by:  Papers (73)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1936 KB)

    The paper demonstrates the application of adaptive vector quantization techniques to the coding of monochromatic and color pictures. Codebooks of representative vectors are generated for different portions of the image. By means of extensive simulations, the performance of the coder for monochrome images is estimated as a function of the various coding parameters-vector dimensionality, number of r... View full abstract»

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  • Adaptive Transform Coding Based on Chain Coding Concepts

    Publication Year: 1986, Page(s):112 - 117
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1288 KB)

    Chain coding technique, originally developed for digital representation and processing of line drawing data, has been implemented in a transform image coding algorithm with significant performance improvement. The algorithm is based on the observation that the boundary of the regions of zero coefficients within a transform block can be efficiently represented by sequences of fixed line segments (c... View full abstract»

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  • The Performance of Five Different Metrics Against Pulsed Jamming

    Publication Year: 1986, Page(s):200 - 204
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (440 KB)

    Metrics that are effective against white Gaussian noise are not necessarily effective against pulsed jamming that is optimized by an opponent. This paper analyzes and compares the information-bit error rates that result from using the hard-decision, maximum-likelihood, white-noise, automatic gain control, and erasure metrics against pulsed jamming. Practical implementation problems and limitations... View full abstract»

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  • Throughput Optimization for a Generalized Stop-and-Wait ARQ Scheme

    Publication Year: 1986, Page(s):205 - 207
    Cited by:  Papers (36)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (240 KB)

    This paper deals with a generalized stop-and-wait ARQ scheme, whereby data blocks are sent to the receiver in sets containing an arbitrary number of identical copies. The main idea behind this scheme is a reduction of the idle time of the transmitter. 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