Performance Evaluation of Precoding in Spatial Modulation OFDM on a LTE Channel

摘要：

　　Multi-user MIMO downlink systems with one base station and many users have attracted the research attention.Precoding algorithms,which uses the channel state information (CSI) to process the transmit signal,have been used to pre-eliminate the spatial interference among different users.In this paper,we explore several precoding methods in the spatial modulation (SM) combined orthogonal frequency division multiplexing (SMOFDM) to achieve good performance on a Long Term Evolution (LTE) channel.Channel inversion methods are introduced to SM scheme.Furthermore,we proposed a specified block diagonalization precoding method for this particular transmit antenna scheme.For assessment purposes,the performance results of SMOFDM systems are compared with the popular Alamouti coded OFDM systems and vertical Bell Labs layered space-time (VBLAST) OFDM systems.Simulation results show that SM based systems achieved better performance in some situations.

关键词： Precoding Spatial Modulation Multipleuser MIMO OFDM

作者: Jin Wang Yue Xiao Shaoqian Li Lei Li Jian Zhang

作者单位: National Key Lab of Communication of UESTC, Chengdu, P.R. China;National Mobile Communications Resea National Key Lab of Communication of UESTC, Chengdu, P.R. China

会议类型: 国际会议

会议名称: 2012 IEEE 14th International Conference on Communication Technology(2012年第十四届通信技术国际会议(ICCT 2012))

会议地点: 成都

会议语种:英文

页码: 1280-1284

在线出版日期: 2012-11-09（万方平台首次上网日期，不代表论文的发表时间）