A hybrid technique based on RS coding and least square method for clipping distortion mitigation in OFDM system

摘要：

Orthogonal frequency division multiplexing (OFDM) signal has a large peak-to-average power ratio (PAPR). Hence, several techniques have been proposed to reduce the PAPR. Clipping is a widely used technique to reduce the peak amplitudes by nonlinearly distorting the OFDM signal at or around the peaks. However, clipping results in symbol distortion because of the nonlinearly operation to the signal peak value. Recently, a DFT-based method for OFDM system to compensate for the performance degradation has been proposed. In this paper, we investigate the hybrid method which consists of RS coding and least square method. Through computer simulation, our results show that the hybrid method is an effective technique to mitigate the clipping distortion.

关键词： OFDM least square method channel coding peak-to average power ratio

作者: Jun Tang Xinyu Jin Xianmin Zhang Wenyu Cai

作者单位: Department of Information science and electronics engineering,ZheJiang University,HangZhou,China,310027

会议类型: 国际会议

会议名称: 第二届IEEE无线通讯、网络技术暨移动计算国际会议

会议地点: 武汉

会议语种:英文

在线出版日期: 2006-09-01（万方平台首次上网日期，不代表论文的发表时间）