Performance analysis on spectral-energy efficiency tradeoff in the D2D-Relay Mechanism

Yu Zeng, Honglin Hu, Ilkka Harjula, Boqi Jia, Tianheng Xu, Yang Yang

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

    1 Citation (Scopus)


    The D2D-Relay mechanism, which integrates device-To-device (D2D) communications and relay technology, is promising in system performance improvement. This paper focuses on studying what kind of benefits the D2D-Relay mechanism could bring into a wireless communication system during the uplink transmission. To comprehensively analyze the system performance, we use a metric, which consists of the spectral efficiency (SE) and the energy efficiency (EE), as an indicator. With this criteria in mind, we theoretically describe the influence from users' preferences to the SE and the EE in detail. Noting that user pairing is an important part of this mechanism, we evaluate the performance of the D2D-Relay mechanism with three typical pairing algorithms based on different criteria. The simulation results conform to our derivations and reveal the performance gain brought by applying the D2D-Relay mechanism. In addition, with different configurations of the number of the users and their preferences to the SE and the EE, the most appropriate algorithm is suggested for the practical application.

    Original languageEnglish
    Title of host publication2017 IEEE Global Communications Conference GLOBECOM 2017
    PublisherIEEE Institute of Electrical and Electronic Engineers
    Number of pages6
    ISBN (Electronic)978-1-5090-5019-2
    ISBN (Print)978-1-5090-5020-8
    Publication statusPublished - 1 Jul 2017
    MoE publication typeA4 Article in a conference publication
    EventIEEE Global Communications Conference, GLOBECOM 2017 - Singapore, Singapore
    Duration: 4 Dec 20178 Dec 2017


    ConferenceIEEE Global Communications Conference, GLOBECOM 2017


    • Cellular network
    • Device-To-device
    • Energy efficiency
    • Pairing algorithm
    • Relay
    • Spectral efficiency
    • Tradeoff


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