Syncretic Scheme for PAPR reduction in OFDM system

摘要：

The high peak-to-average power ratio (PAPR) of the transmitted signal of OFDM is a big problem in the application of Orthogonal frequency division multiplexing (OFDM) technology. This paper focus on the popular PAPR reduction technique which include the signal distortion techniques, coding technique, Symbol Scrambling technique to reduce the PAPR. simulations show that each technique has strongpoint and shortcoming. Then syncretic schemes are proposed to improve the performance. The proposed syncretic schemes which are based on the nonlinear and Symbol scrambling technique can make good use of the strongpoint of the ordinary techniques while avoiding their shortcomings. The simulation results show that the syncretic scheme, which is of low computational complexity, can restrain the high PAPR effectively, the BER performances of the OFDM system under the gauss channel are also carried out to demonstrate the feasibility of the proposed syncretic scheme.

关键词： Orthogonal frequency-division multiplezing (OFDM) peak-to-average power ratio(PAPR) reduction clipping technique companding transform partial transmit sequences(PTS) syncretic scheme

作者: Maokai Hu Xihong Chen

作者单位: Missile Institute,Air Force Engineering University Shaanxi Sanyuan 713800,China

会议类型: 国际会议

会议名称: 2009 9th International Conference on Electronic Measurement & Instruments(第九届电子测量与仪器国际会议 ICEMI2009)

会议地点: 北京

会议语种:英文

页码: 2274-2278

在线出版日期: 2009-08-16（万方平台首次上网日期，不代表论文的发表时间）