抑制OFDM信号PAPR的改进脉冲整形  

Improved pulse shaping for PAPR reduction of OFDM signal

作　　者：冯卓明[1] 刘卫忠[1] 陶雄飞[1] 罗白云[1] 

机构地区：[1]华中科技大学光学与电子信息学院,湖北武汉430074

出　　处：《通信学报》2012年第12期154-160,共7页Journal on Communications

基　　金：国家自然科学基金资助项目(60902006);武汉市晨光计划基金资助项目(201050231051)~~

摘　　要：提出一种改进的Nyquist脉冲,可以提高OFDM信号PAPR的抑制性能,同时不降低系统的BER,频带利用率高。仿真结果表明,其综合性能明显优于传统的升余弦和反转指数脉冲,是一种低复杂度的有效解决方案。An improved Nyquist pulse was presented. The proposed pulse waveform can significantly reduce the PAPR and keep the system BER invariant at the same time, but at the expense of a little spectrum loss. Simulation results show that the proposed shaping pulse can get better performance of PAPR compared to traditional raised cosine pulse and flipped-exponential pulse. It is an effective method with low complexity to reduced the PAPR of OFDM signal by pulse shapping with the proposed nyquist pulse.

关 键 词：正交频分复用 脉冲整形 峰均比 误比特率 

分 类 号：TN919.72[电子电信—通信与信息系统]