电讯技术2018，Vol.58Issue(1)：78-83,6.DOI:10.3969/j.issn.1001-893x.2018.01.014
广义空间调制系统的正则化OMP检测算法
A Regularized OMP Detection Algorithm for Generalized Spatial Modulation Systems
摘要
Abstract
The optimal detection of generalized spatial modulation(GSM) system is the Maximum Likelihood(ML) algorithm.However,the computational complexity of ML detection increases significantly with the increase of the number of active antennas.To solve this problem,a low-complexity detection algorithm based on sparse reconstruction,termed as Regularized Orthogonal Matching Pursuit (ROMP) algorithm,is proposed.The algorithm starts by producing an estimate of the plausible active antennas indices according to correlation between the MIMO channels and the residual,then removes wrong indexes based on the regularization criteria and hence the search space is shrunk.Finally,it estimates GSM signal by involving the LS problem.Simulation results show that the proposed algorithm can improve the detection performance at the cost of slightly increased complexity compared with the conventional orthogonal matching pursuit (OMP) detector,and a better tradeoff between the performance and complexity is achieved.关键词
广义空间调制/信号检测/最大似然/正则化正交匹配追踪Key words
generalized spatial modulation (GSM)/signal detection/maximum likelihood (ML)/regularized orthogonal matching pursuit(ROMP)分类
信息技术与安全科学引用本文复制引用
刘晓鸣,景小荣..广义空间调制系统的正则化OMP检测算法[J].电讯技术,2018,58(1):78-83,6.基金项目
国家科技重大专项(2016ZX03001010-004) （2016ZX03001010-004）
重庆市基础与前沿研究计划项目(cstc2015jcyjA40040) （cstc2015jcyjA40040）
