On the capacity improvement of multicast throughput in wireless ad hoc networks with physical-layer network coding

Chen Chen, Lin Bai, Jianhua He, Haige Xiang, Jinho Choi

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    This paper attempts to address the effectiveness of physical-layer network coding (PNC) on the capacity improvement for multi-hop multicast in random wireless ad hoc networks (WAHNs). While it can be shown that there is a capacity gain by PNC, we can prove that the per session throughput capacity with PNC is θ (nR(n))-1), where n is the total number of nodes, R(n) is the communication range, and each multicast session consists of a constant number of sinks. The result implies that PNC cannot improve the capacity order of multicast in random WAHNs, which is different from the intuition that PNC may improve the capacity order as it allows simultaneous signal reception and combination.

    Original languageEnglish
    Title of host publicationIWCMC 2010 Proceedings of the 6th International Wireless Communications and Mobile Computing Conference
    Place of PublicationNew York
    PublisherAssociation for Computing Machinery (ACM)
    Pages110-113
    Number of pages4
    ISBN (Print)9781450300629
    DOIs
    Publication statusPublished - 2010
    Event6th International Wireless Communications and Mobile Computing Conference, IWCMC 2010 - Caen, France
    Duration: 28 Jun 20102 Jul 2010

    Conference

    Conference6th International Wireless Communications and Mobile Computing Conference, IWCMC 2010
    CountryFrance
    CityCaen
    Period28/06/102/07/10

    Keywords

    • Physical-layer network coding
    • Throughput capacity
    • Wireless ad hoc networks

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