降低OFDM信号峰均比方法的研究及仿真

Research and simulation of OFDM PAPR reduction scheme

阐述了OFDM技术的原理,对OFDM信号存在较大峰均比(PAPR)的问题进行了研究,针对解决这一问题的各种方法进行了仿真,仿真中分析比较了限幅、C变换、SLM、PTS等降低峰均比算法的优缺点,并给出仿真结果。进一步提出改善峰均比技术的发展趋势。

This paper gives a brief introduction of OFDM （Orthogonal frequency division multiplexing） system and the principle of peak-to-average power ratio （PAPR） .Simulation on some PAPR reduction schemes such as clipping, C-transformation, SLM and PTS was done and results show the advantages and shortcomings of these schemes by comparing with each other. At last, some predictions were made on the tendency of these schemes.