A User-wise PAPR Reduction Scheme with Reduced Complexity in MC-CDMA System

摘要：

Partial transmit sequence (PTS) is proposed for the high peak-to-average power ratio (PAPR), which is one of the main drawbacks of orthogonal frequency division multiplexing (OFDM) system. However, its extension to multicarrier code division multiple access (MC-CDMA) system is not well addressed, and suffers from high complexity. In this paper, we propose a novel user-wise PAPR reduction for the downlink MC-CDMA system. The proposed scheme can be regarded as a modified version of partial transmit sequence (PTS), but with improved performance. Furthermore, this scheme can also be combined with the modified phase rotation scheme to achieve complexity reduction as well. Simulation results show that the proposed scheme can achieve better PAPR performance with reduced complexity compared to conventional PTS, which leads a better trade-off among PAPR reduction, transmitting efficiency, and computational complexity.

作者: Lilin Dan Yue Xiao Qingsong Wen Shaoqian.Li

作者单位: School of Communication and Information Engineering University of Electronic Science and Technology of China Chengdu, Sichuan, P.R.China

会议类型: 国际会议

会议名称: 2007年通信、电路与系统国际会议(2007 International Conference on Communications,Circuits and Systems Proceedings)

会议地点: 日本福冈

会议语种:英文

在线出版日期: 2007-07-11（万方平台首次上网日期，不代表论文的发表时间）