Optimal Time Allocation in Relay Assisted Backscatter Communication Systems

Bin Lyu, Zhen Yang, Tianyi Xie, Guan Gui, Fumiyuki Adachi

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

    12 Citations (Scopus)


    In this paper, we consider a relay assisted backscatter communication (RaBackCom) system, where a user backscatters incident signals from a carrier emitter (CE) to a relay and a receiver simultaneously, and then the relay forwards the user's information to the receiver for throughput improvement. We consider two cases that the relay is with/without an embedded energy source. Specifically, if the relay does not have an energy source, it first harvests energy from the signals from the CE and then uses its harvested energy for information forwarding. For both cases, we formulate time allocation problems on the user's information backscattering, the user's information forwarding, or the relay's energy harvesting to maximize the system throughput, and then derive closed-form solutions. Simulation results demonstrate the advantages of the proposed relay cooperation scheme with the optimal time allocation in terms of system throughput.

    Original languageEnglish
    Title of host publication2018 IEEE 87th Vehicular Technology Conference, VTC Spring 2018 - Proceedings
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Number of pages5
    ISBN (Electronic)9781538663554
    Publication statusPublished - 2018 Jul 20
    Event87th IEEE Vehicular Technology Conference, VTC Spring 2018 - Porto, Portugal
    Duration: 2018 Jun 32018 Jun 6

    Publication series

    NameIEEE Vehicular Technology Conference
    ISSN (Print)1550-2252


    Other87th IEEE Vehicular Technology Conference, VTC Spring 2018

    ASJC Scopus subject areas

    • Computer Science Applications
    • Electrical and Electronic Engineering
    • Applied Mathematics


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