TY - JOUR
T1 - Performance Analysis of Short-Packet Non-Orthogonal Multiple Access with Alamouti Space-Time Block Coding
AU - Yuan, Lei
AU - Zheng, Zhi
AU - Yang, Nan
AU - Zhang, Jiliang
N1 - Publisher Copyright:
© 1967-2012 IEEE.
PY - 2021/3
Y1 - 2021/3
N2 - 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.
AB - 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.
KW - Alamouti space-time block coding (STBC)
KW - nakagami-m fading
KW - non-orthogonal multiple access (NOMA)
KW - short-packet communications
UR - http://www.scopus.com/inward/record.url?scp=85101772911&partnerID=8YFLogxK
U2 - 10.1109/TVT.2021.3061444
DO - 10.1109/TVT.2021.3061444
M3 - Article
SN - 0018-9545
VL - 70
SP - 2900
EP - 2905
JO - IEEE Transactions on Vehicular Technology
JF - IEEE Transactions on Vehicular Technology
IS - 3
M1 - 9361195
ER -