A graph model for opportunistic network coding

Sameh Sorour, Neda Aboutoraby, Tareq Y. Al-Naffouri, Mohamed Slim Alouini

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

    6 Citations (Scopus)

    Abstract

    Recent advancements in graph-based analysis and solutions of instantly decodable network coding (IDNC) trigger the interest to extend them to more complicated opportunistic network coding (ONC) scenarios, with limited increase in complexity. In this paper, we design a simple IDNC-like graph model for a specific subclass of ONC, by introducing a more generalized definition of its vertices and the notion of vertex aggregation in order to represent the storage of non-instantly-decodable packets in ONC. Based on this representation, we determine the set of pairwise vertex adjacency conditions that can populate this graph with edges so as to guarantee decodability or aggregation for the vertices of each clique in this graph. We then develop the algorithmic procedures that can be applied on the designed graph model to optimize any performance metric for this ONC subclass. A case study on reducing the completion time shows that the proposed framework improves on the performance of IDNC and gets very close to the optimal performance.

    Original languageEnglish
    Title of host publication2015 International Symposium on Network Coding, NetCod 2015
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages26-30
    Number of pages5
    ISBN (Electronic)9781479919116
    DOIs
    Publication statusPublished - 3 Aug 2015
    EventInternational Symposium on Network Coding, NetCod 2015 - Sydney, Australia
    Duration: 22 Jun 201524 Jun 2015

    Publication series

    Name2015 International Symposium on Network Coding, NetCod 2015

    Conference

    ConferenceInternational Symposium on Network Coding, NetCod 2015
    Country/TerritoryAustralia
    CitySydney
    Period22/06/1524/06/15

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