On the capacity for distributed index coding

Yucheng Liu, Parastoo Sadeghi, Fatemeh Arbabjolfaei, Young Han Kim

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

    13 Citations (Scopus)

    Abstract

    The distributed index coding problem is studied, whereby multiple messages are stored at different servers to be broadcast to receivers with side information. First, the existing composite coding scheme is enhanced for the centralized (single-server) index coding problem, which is then merged with fractional partitioning of servers to yield a new coding scheme for distributed index coding. New outer bounds on the capacity region are also established. For all distributed index coding problems with n ≤ 4 messages and equal server link capacities, the achievable sum-rate of the proposed distributed composite coding scheme match the outer bounds, thus establishing the sum-capacity for these problems.

    Original languageEnglish
    Title of host publication2017 IEEE International Symposium on Information Theory, ISIT 2017
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages3055-3059
    Number of pages5
    ISBN (Electronic)9781509040964
    DOIs
    Publication statusPublished - 9 Aug 2017
    Event2017 IEEE International Symposium on Information Theory, ISIT 2017 - Aachen, Germany
    Duration: 25 Jun 201730 Jun 2017

    Publication series

    NameIEEE International Symposium on Information Theory - Proceedings
    ISSN (Print)2157-8095

    Conference

    Conference2017 IEEE International Symposium on Information Theory, ISIT 2017
    Country/TerritoryGermany
    CityAachen
    Period25/06/1730/06/17

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