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Accession Number
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ADA564191
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Title
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Transmission Strategies for Single-Destination Wireless Networks.
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Publication Date
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Nov 2011
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Media Count
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7p
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Personal Author
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A. Ephremides G. D. Nguyen J. E. Wieselthier S. Kompella
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Abstract
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We consider the media-access control problem for nodes with heavy tra c in single-destination wireless net- works. We assume that each source transmits in each time slot according to a transmission probability, which is a con- tinuous value between 0 and 1. Our goal is to determine the values of the transmission probabilities so that the net- work throughput is maximized. In this paper, we show that the maximum throughput is achieved only if these values are either 0 or 1. We obtain closed-form results for optimal throughput for networks that operate under a homogenous situation in which the expected value of the received power at the destination is the same for each source. We then extend our studies to more general networks, which rely on exhaus- tive search for the optimal set of transmissions. The search has exponential complexity and is feasible only for networks with small or moderate sizes. Thus, we also develop heuristic algorithms, which have polynomial-time complexity and are suitable for large and general networks.
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Keywords
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Communications networks
Heuristic methods
Homogeneity
Mac(Media-access control)
Networks
Nodes
Probability
Radio links
Strategy
Throughput
Time intervals
Transmittance
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Source Agency
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Non Paid ADAS
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NTIS Subject Category
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45C - Common Carrier & Satellite
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Corporate Author
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Naval Research Lab., Washington, DC. Information Technology Div.
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Document Type
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Technical report
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Title Note
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Conference paper.
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NTIS Issue Number
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1302
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Contract Number
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N/A
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