TY - JOUR
T1 - Spatial Modulation-Aided Cooperative NOMA
T2 - Performance Analysis and Comparative Study
AU - Li, Qiang
AU - Wen, Miaowen
AU - Basar, Ertugrul
AU - Poor, H. Vincent
AU - Chen, Fangjiong
N1 - Funding Information:
Manuscript received September 7, 2018; revised December 24, 2018; accepted February 1, 2019. Date of publication February 7, 2019; date of current version May 22, 2019. This work was supported in part by the National Natural Science Foundation of China under Grant 61871190, Grant 61671211, and Grant U1701265, in part by the Natural Science Foundation of Guangdong Province under Grant 2018B030306005, Grant 2016A030311024, and Grant 2016A030308006, in part by the U.S. National Science Foundation under Grants CCF-093970 and CCF-1513915, in part by the Turkish Academy of Sciences (TUBA) GEBIP Programme, in part by the State Key Laboratory of Integrated Service Networks of Xidian University under Grant ISN20-16, and in part by the China Scholarship Council under Grant 201806150074. The guest editor coordinating the review of this paper and approving it for publication was Dr. Yuanwei Liu. (Corresponding author: Miaowen Wen.) Q. Li and M. Wen are with the School of Electronic and Information Engineering, South China University of Technology, Guangzhou 510640, China, and also with the State Key Laboratory of Integrated Service Networks, Xi-dian University, Xi’an 710071, China (e-mail:, eeqiangli@mail.scut.edu.cn; eemwwen@scut.edu.cn).
PY - 2019/6
Y1 - 2019/6
N2 - 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-bearing 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.
AB - 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-bearing 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.
KW - Bit error rate
KW - cooperative relaying
KW - non-orthogonal multiple access
KW - spatial modulation
KW - sum rate
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U2 - 10.1109/JSTSP.2019.2898099
DO - 10.1109/JSTSP.2019.2898099
M3 - Article
AN - SCOPUS:85061292774
VL - 13
SP - 715
EP - 728
JO - IEEE Journal on Selected Topics in Signal Processing
JF - IEEE Journal on Selected Topics in Signal Processing
SN - 1932-4553
IS - 3
M1 - 8636968
ER -