A Constellation Extension Based SLM Scheme for PAPR Reduction of OFDM Signals

摘要：

Conventional Selected mapping (C-SLM) scheme is commonly employed to reduce peak-to-average power ratio (PAPR) for orthogonal frequency division multiplexing (OFDM) systems. However, some side information (SI) must be transmitted for the receiver to recover data correctly, and the SI and data information is separately transmitted. In this paper, we propose a constellation extension based SLM (CE-SLM) scheme to avoid transmitting the SI separately. The independence constraint for CE-SLM scheme is analyzed to guarantee an optimal performance for PAPR reduction. And then the scheme with simple implementation is proposed according to the independence constraint. Simulation results show that CE-SLM scheme has a good performance to reduce PAPR approaching the theoretical limit.

关键词： orthogonal frequency division multiplexing peak-toaverage power ratio selected mapping constellation extension

作者: Jingru Zhou Xiaodong Xu Xuchu Dai

作者单位: Dept. of Electronic Engineering and Information Science University of Science and Technology of Chin Dept. of Electronic Engineering and Information ScienceUniversity of Science and Technology of China

会议类型: 国际会议

会议名称: 2011年无线通信与信号处理国际会议(WCSP 2011)

会议地点: 南京

会议语种:英文

页码: 1-5

在线出版日期: 2011-11-09（万方平台首次上网日期，不代表论文的发表时间）