TY - GEN
T1 - On the Design of NOMA Assisted Multi-Antenna Two-Way Relay Systems
AU - Lv, Lu
AU - Ye, Qiang
AU - Ding, Zhiguo
AU - Li, Zan
AU - Al-Dhahir, Naofal
AU - Chen, Jian
N1 - Funding Information:
This work was supported in part by the National Natural Science Foundation of China (NSFC) under Grants 61901313 and 61771366, in part by the NSFC for Distinguished Young Scholar under Grant 61825104, in part by the open research fund of National Mobile Communications Research Laboratory, Southeast University, under Grant 2020D07, in part by Project funded by the China Postdoctoral Science Foundation, and in part by the Natural Sciences and Engineering Research Council of Canada.
Publisher Copyright:
© 2020 IEEE.
PY - 2020/6
Y1 - 2020/6
N2 - In this paper, we investigate a NOMA assisted multi-antenna two-way relay system, where users apply NOMA to support bidirectional superposition transmission with the aid of multiple relays. Specifically, we propose a multiple-access broadcast NOMA strategy together with a joint antenna-and-relay selection scheme to enhance its transmission reliability. Analytical closed-form expressions for the outage probability and diversity order are derived to evaluate the system performance achieved by the proposed strategy with the joint antenna-and-relay selection scheme. Based on the analytical result, we further optimize the power allocation to reduce the outage probability. Our numerical results show that the proposed mechanism significantly outperforms existing benchmark strategies in terms of the outage probability.
AB - In this paper, we investigate a NOMA assisted multi-antenna two-way relay system, where users apply NOMA to support bidirectional superposition transmission with the aid of multiple relays. Specifically, we propose a multiple-access broadcast NOMA strategy together with a joint antenna-and-relay selection scheme to enhance its transmission reliability. Analytical closed-form expressions for the outage probability and diversity order are derived to evaluate the system performance achieved by the proposed strategy with the joint antenna-and-relay selection scheme. Based on the analytical result, we further optimize the power allocation to reduce the outage probability. Our numerical results show that the proposed mechanism significantly outperforms existing benchmark strategies in terms of the outage probability.
UR - http://www.scopus.com/inward/record.url?scp=85089412422&partnerID=8YFLogxK
U2 - 10.1109/ICC40277.2020.9149110
DO - 10.1109/ICC40277.2020.9149110
M3 - Conference contribution
AN - SCOPUS:85089412422
T3 - IEEE International Conference on Communications
BT - 2020 IEEE International Conference on Communications, ICC 2020 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 IEEE International Conference on Communications, ICC 2020
Y2 - 7 June 2020 through 11 June 2020
ER -