Coded cooperative data exchange for multiple unicasts

Shahriar Etemadi Tajbakhsh*, Parastoo Sadeghi

*Corresponding author for this work

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    26 Citations (Scopus)

    Abstract

    The advantages of coded cooperative data exchange has been studied in the literature. In this problem, a group of wireless clients are interested in the same set of packets (a multicast scenario). Each client initially holds a subset of packets and wills to obtain its missing packets in a cooperative setting by exchanging packets with its peers. Cooperation via short range transmission links among the clients (which are faster, cheaper and more reliable) is an alternative for retransmissions by the base station. In this paper, we extend the problem of cooperative data exchange to the case of multiple unicasts to a set of n clients, where each client ci is interested in a specific message xi and the clients cooperate with each others to compensate the errors occurred over the downlink. Moreover, our proposed method maintains the secrecy of individuals' messages at the price of a substantially small overhead.

    Original languageEnglish
    Title of host publication2012 IEEE Information Theory Workshop, ITW 2012
    Pages587-591
    Number of pages5
    DOIs
    Publication statusPublished - 2012
    Event2012 IEEE Information Theory Workshop, ITW 2012 - Lausanne, Switzerland
    Duration: 3 Sept 20127 Sept 2012

    Publication series

    Name2012 IEEE Information Theory Workshop, ITW 2012

    Conference

    Conference2012 IEEE Information Theory Workshop, ITW 2012
    Country/TerritorySwitzerland
    CityLausanne
    Period3/09/127/09/12

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