Spatial Modulation-Aided Cooperative NOMA: Performance Analysis and Comparative Study

作     者：Li, Qiang Wen, Miaowen Basar, Ertugrul Poor, H. Vincent Chen, Fangjiong 

作者机构：South China Univ Technol Sch Elect & Informat Engn Guangzhou 510640 Guangdong Peoples R China Xidian Univ State Key Lab Integrated Serv Networks Xian 710071 Shaanxi Peoples R China Koc Univ Dept Elect & Elect Engn Commun Res & Innovat Lab TR-34450 Sariyer Turkey Princeton Univ Dept Elect Engn Princeton NJ 08544 USA 

出 版 物：《IEEE JOURNAL OF SELECTED TOPICS IN SIGNAL PROCESSING》 (IEEE信号处理选题杂志)

年 卷 期：2019年第13卷第3期

页      面：715-728页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 

基　　金：National Natural Science Foundation of China [61871190, 61671211, U1701265] Natural Science Foundation of Guangdong Province [2018B030306005, 2016A030311024, 2016A030308006] U.S. National Science Foundation [CCF-093970, CCF-1513915] Turkish Academy of Sciences (TUBA) GEBIP Programme State Key Laboratory of Integrated Service Networks of Xidian University [ISN20-16] China Scholarship Council 

主　　题：Bit error rate cooperative relaying non-orthogonal multiple access spatial modulation sum rate 

摘      要：The combination of non-orthogonal multiple access (NOMA) and multiple-input multiple-output (MIMO) signaling is capable of providing significantly improved spectral efficiency and effective multiple access. However, conventional MIMO-NOMA entails significantly increased power consumption and implementation complexity. Inspired by the essence of spatial modulation (SM), in this paper, a novel three-node cooperative relaying system (CRS) using SM-aided NOMA, termed CRS-SM-NOMA, is proposed, in which the messages for two users are conveyed by two different information-hearing units of SM. As the reference scheme, conventional CRS-NOMA is further re-investigated with multiple receive antennas. Besides the achievable rate, which is adopted by most of the existing NOMA works as the performance metric, the bit error rate (BER) of CRS-SM-NOMA and CRS-NOMA is analyzed assuming maximum-likelihood detection. Approximate bit error probability expressions are derived in closed form for both users. Simulation results verify the analysis and show that the proposed CRS-SM-NOMA outperforms conventional CRS-NOMA and SM-OMA in terms of the BER as well as ergodic sum rate.