NOMA-Aided Generalized Pre-Coded Quadrature Spatial Modulation for Downlink Communication Systems  

作　　者：Jun Li Jia Hou Lisheng Fan Yier Yan Xue-Qin Jiang Han Hai 

机构地区：[1]Research Center of Intelligent Communication Engineering,School of Electronics and Communication Engineering,Guangzhou University,Guangzhou 510006,China [2]School of Electronic and Information Engineering,Soochow University,Suzhou 215006,China [3]School of Computer Science,Guangzhou University,Guangzhou 510006,China [4]School of Information Science and Technology,Donghua University,Shanghai 201620,China

出　　处：《China Communications》2020年第11期120-130,共11页中国通信（英文版）

基　　金：supported by National Nature Science Foundation of China(No.61701127,No.61871139,No.61631004,No.62071319);the International Collaborative Research Program of Guangdong Science and Technology Department(No.2020A0505100061).

摘　　要：Generalised pre-coding quadrature spatial modulation(GPQSM)is recently proposed to increase the spectral efficiency(SE)of GPSM,which extends the transmitted symbols into in-phase/quadrature domains.In this paper,a novel scheme named non-orthogonal multiple access(NOMA)-aided GPQSM(NOMA-GPQSM),which incorporates the GPQSM scheme into the multi-user communication networks with assist of NOMA,is proposed to further improve the SE and system performance.In NOMA-GPQSM,one base station(BS)is set to serve K users,where user 1 is closest to the BS,and user K is farthest from the BS.In addition,a low-complexity detection method is proposed to reduce the high detection complexity of the maximum-likelihood(ML)detection in successive interference cancellation(SIC)method for all users by NOMA-GPQSM.The theoretical analysis of the BER performance for all users is also derived.Simulation results show that near users achieve relatively good performance,and far users achieve acceptable performance by adjusting power factors for all users in NOMA-GPQSM.

关 键 词：spatial modulation index modulation non-orthogonal multiple access bit error rate pre-coding 

分 类 号：TN929.5[电子电信—通信与信息系统]