Understanding Practical Limitations of Network Coding for Assisted Proximate Communication

Alexander Pyattaev, Olga Galinina, Sergey Andreev, Marcos Katz, Yevgeni Koucheryavy

    Research output: Contribution to journalArticleScientificpeer-review

    31 Citations (Scopus)


    In next-generation wireless networks, device-to-device (D2D) communication represents a feasible way for mobile users to offload their cellular traffic demand without extra costs for deploying additional infrastructure from the network operators. Cellular (e.g., 3GPP LTE) network assistance can automate user/service discovery and connection establishment procedures, as well as enable secure D2D connectivity between proximate users. Currently, assisted direct connectivity is only available in the form of unlicensed-band protocols (e.g., WiFi Direct), which motivates research on understanding its practical limitations with realistic distributions of users and content. Whereas there are concerns that D2D communication alone may not be efficient due to limited content availability, in this paper, we advocate the use of network coding to upgrade assisted proximate communication and make it realize its full potential. In particular, we demonstrate that even simpler network coding techniques are capable to significantly improve the degrees of content availability for communicating users and thus enhance offloading performance under realistic constraints. Inspired by the recent popularity of wireless content distribution systems over D2D caches, we contribute a practical methodology for assisted data caching and distribution, mindful of the state-of-the-art D2D technology.
    Translated title of the contributionUnderstanding Practical Limitations of Network Coding for Assisted Proximate Communication
    Original languageEnglish
    Pages (from-to)156-170
    Number of pages15
    JournalIEEE Journal on Selected Areas in Communications
    Publication statusPublished - 2015
    Publication typeA1 Journal article-refereed

    Publication forum classification

    • Publication forum level 3


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