摘要
Pre-coding aided quadrature spatial modulation(PQSM) is a promising multiple input multiple output(MIMO) transmission technology. The multiuser(MU) detection in PQSM system is investigated in this paper. Based on the known channel state information, pre-coding matrix is designed to pre-process the in-phase and quadrature signals of quadrature spatial modulation(QSM) to reduce the inter-channel interference. In order to lower the complexity at the receiver brought by the orthogonality of the PQSM system, an orthogonal matching pursuit(OMP) detection algorithm and a reconstructed model are proposed. The analysis and simulation results show that the proposed algorithm can obtain a similar bit error rate(BER) performance as the maximum likelihood(ML) detection algorithm with more than 80% reduction of complexity.
Pre-coding aided quadrature spatial modulation （PQSM） is a promising multiple input multiple output （MIMO） transmission technology. The multiuser （MU） detection in PQSM system is investigated in this paper. Based on the known channel state information, pre-coding matrix is designed to pre-process the in-phase and quadrature signals of quadra- ture spatial modulation （QSM） to reduce the inter-channel interference, in order to lower the complexity at the receiver brought by the orthogonality of the PQSM system, an orthog- onal matching pursuit （OMP） detection algo- rithm and a reconstructed model are proposed. The analysis and simulation results show that the proposed algorithm can obtain a similar bit error rate （BER） performance as the maximum likelihood （ML） detection algorithm with more than 80% reduction of complexity.
基金
partially supported by the National Natural Science Foundation of China (Grant No. 61701063)
Scientific and Technological Research Program of Chongqing Municipal Education Commission (No. KJ1600435)
