【摘要】 针对MIMO-OFDM系统模型,在传统的独立选择性映射(SLM)方案基础上,提出一种改进的SLM方案,大大减小了辅助信息量,并着重对MIMO-OFDM系统中SLM技术采用的各种相位序列进行探讨.仿真结果表明,对于MIMO-OFDM系统中峰平功率比(PAPR),选择Golay序列、随机序列以及Shapiro-Rudin序列作为SLM的相位序列效果较好,而选择OVSF序列和Walsh-Hadamard序列效果较差.更多还原

【Abstract】 The system model of MIMO-OFDM is analyzed first in this paper.Then a new improved SLM is studied based on individual SLM scheme,which can reduce the side information greatly.Finally,the varied phase sequences used in SLM are also investigated emphatically.The simulation results indicate that when Golay sequence,random sequence and Shapiro-Rudin sequence are selected as the phase sequence used in SLM respectively,the PAPR performance of MIMO-OFDM is better than that when OVSF sequence and Walsh-Hadamard sequence are selected.更多还原