On Distributed Communications

III. Determination of Path-Lengths in a Distributed Network

by J. W. Smith


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One in a series of eleven Memoranda detailing the Distributed Adaptive Message Block Network, a proposed digital data communications system based on a distributed network concept. Results of investigations into the behavior of distributed communications networks under various loading conditions are reported. A mathematical model and a deterministic equation for predicting the distribution of message path-lengths are derived and evaluated. A SCAT-encoded simulation program that corrects deficiencies of earlier simulations is described.

Table of Contents

  • Preface

  • Summary

  • Symbols

  • Figures

  • Section One


  • Section Two

    The Routing Doctrine

  • Section Three

    Computational Techniques

  • Section Four

    Input-Choking and Stack Lengths

  • Section Five

    Edge Binding

  • Section Six

    Variations in Traffic Density

  • Section Seven

    The Best-Path Algorithm

  • Appendix A

    Program Descriptiion

  • Appendix B

    Program Listing

  • List of Publications in the Series

This research is sponsored by the United States Air Force under Project RAND-Contract No. AF 49(638) .700 monitored by the Directorate of Development Plans, Deputy Chief of Staff, Research and Development, Hq USAF.

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