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    Enabling Asynchronous Machine-Type D2D Communication Using Multiple Waveforms in 5G

    Sexton, Conor and Bodinier, Quentin and Farhang, Arman and Marchetti, Nicola and Bader, Faouzi and DaSilva, Luiz A. (2018) Enabling Asynchronous Machine-Type D2D Communication Using Multiple Waveforms in 5G. IEEE Internet of Things Journal, 5 (2). pp. 1307-1322. ISSN 2327-4662

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    In this paper, we explore the idea that 5G will permit the use of multiple waveforms, with each service employing a waveform that is best suited for it. We look at a 5G machinetype communication (MTC) scenario consisting of clustered user equipment employing device-to-device (D2D) communication, such as a smart factory with intercommunicating machinery. The overhead associated with synchronizing a large number of machine-type D2D user equipment (DUE) comes at a cost that may render synchronous communication infeasible or undesirable. Based on this motivation, we consider multiple possible combinations of prominent 5G waveform candidates for cellular users and DUEs, examining the asynchronous performance of all waveforms under consideration and using the performance of synchronous orthogonal frequency division multiplexing (OFDM) as a baseline for comparison. Specifically, we focus on the coexistence of waveforms in which the ordinary cellular users employ OFDM for synchronous communication, as in LTE, and the machine-type DUEs, operating asynchronously, employ a different waveform. When DUEs employ filter bank multicarrier with offset-QAM, the average achieved rate is marginally greater than the synchronous OFDM baseline case, and approximately 43% greater than the asynchronous OFDM case. This result is encouraging, as the benefits of asynchronous D2D communication could be enjoyed in MTC scenarios without suffering any performance reduction compared to the synchronous OFDM scenario. We then investigate how the relative performance of different waveform choices depends on the scenario by varying key parameters. Notably, for asynchronous communication, increasing the transmit power of DUEs results in diminishing benefits unless the DUEs employ a waveform that mitigates interdevice leakage interference.

    Item Type: Article
    Keywords: 5G; device-to-device (D2D); fractional frequency reuse (FFR); machine-type communication (MTC); new waveforms;
    Academic Unit: Faculty of Science and Engineering > Electronic Engineering
    Faculty of Science and Engineering > Research Institutes > Hamilton Institute
    Item ID: 13288
    Identification Number:
    Depositing User: Arman Farhang
    Date Deposited: 25 Sep 2020 14:18
    Journal or Publication Title: IEEE Internet of Things Journal
    Publisher: IEEE Xplore
    Refereed: Yes
    Use Licence: This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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