中文摘要：

载波干涉（CI）、选择映射法（SLM）部分传输序列法（PTS）都是基于序列的降低正交频分复用（OFDM）系统峰均功率比（PAPR）的算法。着重介绍了CI/OFDM系统,并对CI、SLM、PTS这三种算法进行了复杂度分析。计算机仿真结果表明,这三种算法中,CI技术不仅能够有效降低OFDM系统的PAPR,还能具备较低的运算复杂度。

英文摘要：

Carrier interferometry（CI）,selective mapping（SLM）and partial transmit sequence（PTS）are all sequence-based important schemes to reduce the peak to average power ratio（PAPR）of the orthogonal frequency division multiplexing（OFDM）system.The CI/OFDM system is presented first,and then the computational complexity of CI,SLM,PTS schemes are analyzed.The computer simulations demonstrate that CI/OFDM scheme can reduce the PAPR of OFDM system efficiently with the lower computational complexity.