Performance Analysis of Short-Packet Non-Orthogonal Multiple Access with Alamouti Space-Time Block Coding

Lei Yuan*, Zhi Zheng, Nan Yang, Jiliang Zhang

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    26 Citations (Scopus)

    Abstract

    This paper presents the analytical performance analysis for short-packet non-orthogonal multiple access (NOMA) systems with the Alamouti space-time block coding (STBC) scheme over Nakagami-m fading channels. In the considered system, the base station (BS) with two antennas transmits short packets to two users with single antenna simultaneously by using Alamouti STBC, assuming that statistical and instantaneous channel state information (CSI) is known at the BS and the two users, respectively. The exact closed-from expressions are derived for the average block error rate (BLER) at each user. Then the simple expressions are derived for the asymptotic average BLER at high signal-to-noise ratios (SNRs). We further derive the optimal power allocation coefficients and the minimum blocklength to satisfy the average BLERs at two users. Finally, Monte Carlo simulations are used to verify the theoretical results and numerical results demonstrate the performance advantage of the STBC-NOMA scheme over the counterpart STBC-OMA one in terms of achieving low-latency transmission.

    Original languageEnglish
    Article number9361195
    Pages (from-to)2900-2905
    Number of pages6
    JournalIEEE Transactions on Vehicular Technology
    Volume70
    Issue number3
    DOIs
    Publication statusPublished - Mar 2021

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