Performance analysis of a meteor burst packet network.
Item
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Title
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Performance analysis of a meteor burst packet network.
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Identifier
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AAI9207103
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identifier
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9207103
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Creator
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Mian, Muhammad Saleem.
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Contributor
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Adviser: Tarek N. Saadawi
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Date
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1991
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Language
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English
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Publisher
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City University of New York.
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Subject
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Engineering, Electronics and Electrical
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Abstract
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The delay-throughput characteristics of a meteor burst communication network have been analyzed. The intermittent nature of a meteor burst (MB) channel is modelled by random service interruptions on a waiting line process. In the first part of this work a protocol for a point to point link has been devised to utilize the channel efficiently. First and second moments of message "completion time" have been computed in order to determine the average packet delay. A continuous time Markov chain method has been used for the analysis and the results have been compared with the completion time analysis. Due to the short durations of existence of the MB channel, shorter packets are appropriate. Optimum packet size has been obtained. The meteor arrival rate changes diurnally. It is maximum in the early morning hours and minimum in the late evening hours. A comparison has been made in the throughput values for these peak hours.;In the second part of the problem, the work has been extended to a multi-node network. A star topology is considered in which all nodes access a centralized station. The network protocol proposed uses the ALOHA-type multiple access scheme with probe and busy tone (BT). The performance has been measured in terms of average packet delay, throughput and probability of blocking. It has been concluded that the multiple access scheme significantly improves the network performance when compared with the polling scheme used in the earlier MBC systems, when the number of nodes is high. In the case that the remote nodes (especially mobile) are located at different distances from the central node, a near/far capture effect can be exploited to minimize the probability of packet collision. Finally, a simulation has been performed using Simscript 11.5 simulating language and the results have been compared with those obtained through the numerical analysis.
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Type
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dissertation
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Source
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PQT Legacy CUNY.xlsx
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degree
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Ph.D.
