The multicast capacity region of large wireless networks
Name
Niesen-2009-The multicast capacity region of large wireless networks.pdf
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230.94 KB
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Checksum (MD5)
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Author(s)
Shah, Devavrat
Niesen, Urs
Gupta, Piyush
Date Issued
June 2009
Journal
IEEE INFOCOM 2009
Publisher
Institute of Electrical and Electronics Engineers
Citation
Niesen, U., P. Gupta, and D. Shah. “The Multicast Capacity Region of Large Wireless Networks.” INFOCOM 2009, IEEE. 2009. 1881-1889. © 2010 Institute of Electrical and Electronics Engineers.
Version
Final published version
Abstract
We study the problem of determining the multicast capacity region of a wireless network of n nodes randomly located in an extended area and communicating with each other over Gaussian fading channels. We obtain an explicit information- theoretic characterization of the scaling of the multicast capacity region for n nodes in terms of 2n weighted cuts. These cuts only depend on the geometry of the locations of the source nodes and their destination nodes and the traffic demands between them, and thus can be readily evaluated. The results are constructive and provide a two-layer architecture for achieving nearly the entire multicast capacity region in the scaling sense: The top layer routes traffic from each of the source nodes to its set of destination nodes, and the bottom layer physically distributes/concentrates traffic among appropriate nodes through one of the two cooperative communication schemes - hierarchical relaying and multi-hopping - depending on the wireless-channel characteristics.
Subjects
Gaussian fading channels
hierarchical relaying
cooperative communication
information-theoretic characterization
large wireless networks
multicast capacity region scaling
wireless-channel characteristics
traffic
multihopping
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1109/INFCOM.2009.5062109
