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A ring model for local/mobile radio communications with correct packet capture

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Author
Tran, Kim J.
Date
1991-03
Advisor
Ha, Tri T.
Robertson, R. Clark
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Abstract
Researchers and scientists have been studying Aloha networks for many years hoping to improve the channel throughput and overcome the inherent instability. In this study, we are going to describe some of the Aloha network features. An application of the slotted Aloha network is considered for local/mobile radio communications. The near/far effect, Rayleigh fading, and shadow fading arise in local/mobile radio communications due to differences in distances and topography between each of the users and the base station. These various effects cause a packet capture effect which improves overall channel throughput but leads to different packet delay times for the various users. An analysis of a ring model for local/mobile radio communications with correct packet capture is considered in this paper. The correct packet capture effect of one-ring and three-ring networks are studied. A Markov model is developed for a slotted Aloha network with capture. It is shown that the throughput in such a network is markedly greater than the standard 1/e. Perhaps even more important is the result that such networks are more stable under overload. .
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This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
URI
http://hdl.handle.net/10945/27243
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  • 1. Thesis and Dissertation Collection, all items

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Showing items related by title, author, creator and subject.

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    Performance analysis of Aloha networks with power capture and near/far effects 

    McCartin, Joseph T. (Monterey, California. Naval Postgraduate School, 1989-06);
    This thesis presents an analysis of the through put characteristics for several classes of Aloha packet networks. Specifically, the throughput for variable packet length Aloha utilizing multiple power levels to induce ...
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    A model for local/mobile radio communications with correct packet capture 

    Robertson, R. Clark; Ha, Tri T. (IEEE, 1992-04);
    An analysis of the performance of a local/mobile radio communications system utilizing the slotted ALOHA multiple random access protocol is presented in this paper. The probability of correct packet capture is evaluated ...
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    Development of Protocols for Maritime Mobile Communications 

    Borchardt, Randy L.; Ha, Tri T.; Robertson, R. Clark (Monterey, California. Naval Postgraduate School, 1993-11-12); NPS-EC-93-021
    Data communications are becoming more extensively used in the maritime mobile services. With no current general protocol profile that can be used for data communications between mobile services, it will be advantageous to ...
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