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Communications, IEEE Transactions on

Issue 5 • Date May 1987

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Displaying Results 1 - 19 of 19
  • [Front cover and table of contents]

    Publication Year: 1987 , Page(s): 0
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    Freely Available from IEEE
  • Correction to "Delay Analysis of 0.487 Contention Resolution Algorithms"

    Publication Year: 1987 , Page(s): 566
    Cited by:  Papers (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (99 KB)  

    First Page of the Article
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  • [Back cover]

    Publication Year: 1987 , Page(s): 0
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    Freely Available from IEEE
  • Adaptive Diversity Reception Over a Slow Nonselective Fading Channel

    Publication Year: 1987 , Page(s): 572 - 574
    Cited by:  Papers (17)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (288 KB)  

    We extend some previous results on adaptive receivers with memory for slow nonselective Rayleigh fading channels to the case of diversity reception. The Bayes receiver in this case is shown to be a generalized maximal ratio combiner. Error probability performance is obtained for antipodal signals such as BPSK. A simple performance upper bound is also derived. Numerical performance results are pres... View full abstract»

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  • The Effect of Idle Server First Random Routing on the Behavior of a Finite Queue

    Publication Year: 1987 , Page(s): 496 - 502
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (624 KB)  

    This paper studies the effect of routing on the behavior of a finite queue which accepts batch Poisson inputs and receives service from multiple synchronous servers. Upon the arrival of a group of customers idle or pseudoidle servers will be considered first in routing decisions. Otherwise routing will be determined randomly in accordance with a preset probability distribution. Results obtained in... View full abstract»

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  • Oversampled Sigma-Delta Modulation

    Publication Year: 1987 , Page(s): 481 - 489
    Cited by:  Papers (174)  |  Patents (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (864 KB)  

    Oversampled sigma-delta modulation has been proposed as a practical implementation for high rate analog-to-digital conversion because of its simplicity and its robustness against circuit imperfections. To date, mathematical developments of the basic properties of such systems have been based either on simplified continuous-time approximate models or on linearized discrete-time models where the qua... View full abstract»

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  • A Minimum Mean-Square Error Equalizer for Nonlinear Satellite Channels

    Publication Year: 1987 , Page(s): 556 - 560
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (480 KB)  

    The problem of designing and evaluating the performance of a minimum mean-square error equalizer (MMSEE) for binary PSK transmission over band-limited nonlinear satellite channels is considered in this correspondence. The effect of intersymbol interference followed by AM/AM and AM/PM conversions are taken into account while optimizing the performance in the presence of the downlink white Gaussian ... View full abstract»

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  • Comparison of Routing Procedures for Circuit-Switched Traffic in Nonhierarchical Networks

    Publication Year: 1987 , Page(s): 535 - 544
    Cited by:  Papers (14)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1184 KB)  

    In this paper, we compare the use of different types of routing procedures for circuit-switched traffic in nonhierarchical networks. The main performance criterion used is the end-to-end blocking probability. The results show that if the network traffic is light, alternate routing performs better than nonalternate routing, but if the network traffic is heavy, the situation is reversed. To improve ... View full abstract»

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  • Configuration and Characteristics of a Fiber-Optic Video Distribution System

    Publication Year: 1987 , Page(s): 522 - 528
    Cited by:  Papers (1)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (776 KB)  

    A multiservice fiber-optic subscriber system using wavelength division multiplexing technology has been developed by Nippon Telegraph and Telephone Corporation to provide both 64 kbits/s and broad-band communication services on a single multimode fiber. The subscriber network is formed in a star topology to facilitate bidirectional connection. The system was put in service in March, 1985, as part ... View full abstract»

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  • Code Acquisition for a Frequency-Hopping System

    Publication Year: 1987 , Page(s): 566 - 568
    Cited by:  Papers (13)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (312 KB)  

    Code acquisition for a frequency-hopping code-division multiple-access system using Reed-Solomon coding is investigated. The one-coincidence codes which minimize the user interference are shown to be well suited for initial synchronization but are less appropriate for regaining synchronism during transmission. A modified code construction is proposed, which has good capability of both startup and ... View full abstract»

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  • Announced Arrival Random Access Protocols

    Publication Year: 1987 , Page(s): 513 - 521
    Cited by:  Papers (15)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (920 KB)  

    In this paper we propose and evaluate several protocols for a random access channel. The channel is divided into a control subchannel which is used to inform all users of the approximate times of arrival of new packets and a data subchannel which is used to transmit the data. Packets arriving at different users at approximately the same time may cause a collision on the control subchannel. Such co... View full abstract»

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  • Time-Stamp Approach to Store-and-Forward Deadlock Prevention

    Publication Year: 1987 , Page(s): 490 - 495
    Cited by:  Papers (9)  |  Patents (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (784 KB)  

    This paper deals with the problem of store-and-forward deadlock prevention in store-and-forward networks. The presented solution uses time stamping of all messages in the network, and a nonpreemptable message exchange mechanism. By combining these ideas, a new distributed flow control procedure is derived which guarantees that all messages are delivered to their own destinations, thus avoiding bot... View full abstract»

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  • Common Pitfalls in the Application of Stationary Process Theory to Time-Sampled and Modulated Signals

    Publication Year: 1987 , Page(s): 529 - 534
    Cited by:  Papers (11)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (576 KB)  

    The common practice of applying the theory of stationary stochastic processes to a cyclostationary process by introducing random phase(s) into the probabilistic model in order to stationarize the process can lead to erroneous results, such as incorrect formulas for power spectral density. This is illustrated by showing that commonly used formulas for signals that have undergone frequency conversio... View full abstract»

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  • The Minimum Likelihood--A New Concept for Bit Synchronization

    Publication Year: 1987 , Page(s): 545 - 549
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (504 KB)  

    A new bit synchronization concept based on the "minimum likelihood" criterion instead of the conventional "maximum likelihood" concept is developed. The minimum likelihood situation is even easier to reach than the maximum likelihood because the derivative of the log likelihood function becomes identically zero there. Minimum likelihood implies "least likely" for synchronization (the worst case sy... View full abstract»

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  • Routing in the Manhattan Street Network

    Publication Year: 1987 , Page(s): 503 - 512
    Cited by:  Papers (215)  |  Patents (6)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1040 KB)  

    The Manhattan Street Network is a regular, two-connected network, designed for packet communications in a local or metropolitan area. It operates as a slotted system, similar to conventional loop networks. Unlike loop networks, routing decisions must be made at every node in this network. In this paper, several distributed routing rules are investigated that take advantage of the regular structure... View full abstract»

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  • Optimization of Generalized Tamed Frequency Modulation Bit Error Rate Performance Subject to a Bandwidth Constraint

    Publication Year: 1987 , Page(s): 560 - 564
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (512 KB)  

    This paper deals with the optimization of coherent generalized tamed frequency modulation (GTFM). The optimization is carried out over certain parameters of the modulation scheme to give the best BER (bit error rate) performance, subject to a bandwidth constraint. The optimization is done by an algorithm which uses the upper bound on the squared Euclidean distance as a metric of the BER performanc... View full abstract»

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  • Performance of RS-BCH Concatenated Codes and BCH Single-Stage Codes on an Interference Satellite Channel

    Publication Year: 1987 , Page(s): 550 - 556
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (800 KB)  

    In this correspondence, a model is analyzed that was designed to study interference on satellite channels. We developed this model to obtain performance results for a coherent phase-shift keyed (CPSK) system in which RS-BCH concatenated codes and BCH singlestage codes are applied to a satellite channel corrupted by cochannel interference. These results make use of earlier work on performance analy... View full abstract»

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  • Time-Stamp Approach to Prevention of Different Deadlock Types in Store-and-Forward Networks

    Publication Year: 1987 , Page(s): 564 - 566
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (360 KB)  

    This correspondence is concerned with the prevention of four types of deadlock in store-and-forward networks, i.e., progeny, copy-release, reassembly, and resequence deadlocks. The approach presented makes use of time stamping of all messages and generalizes the method of store-and-forward deadlock prevention. View full abstract»

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  • Analysis and Modeling of Intermodulation Distortion in Wide-Band Cable TV Channels

    Publication Year: 1987 , Page(s): 568 - 572
    Cited by:  Papers (10)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (528 KB)  

    This correspondence deals with the development of a practical approach for the assessment of intermodulation distortion in modern cable television (CATV) systems operating over the 400 MHz range. In particular, Volterra series expansions are used in establishing appropriate high-frequency models for the description of such wide-band CATV channels. Furthermore, experimental measurements made on a t... 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
Robert Schober
University of British Columbia