使用PTS和限幅联合算法降低OFDM峰均比

提出了一种降低正交频分复用(OFDM)系统峰均比(PAPR)的联合算法:部分传输序列(PTS)和限幅(Clipping)算法.该联合算法先利用PTS算法对OFDM信号进行处理以降低PAPR,所得信号再利用限幅法进行处理,以进一步降低PAPR.只要2种方法对PAPR的降低程度选取得当,就可以在降低PAPR的情况下既减小运算量,又不产生过大的噪声干扰,数据仿真验证了所提方法的有效性.

Using the Union Algorithm of PTS and Clipping to Reduce PAPR in OFDM System

This paper proposes a union algorithm of partial transmit sequence(PTS) and clipping to reduce peak-to-average-power ratio(PAPR) in orthogonal frequency division multiplexing(OFDM) system.Firstly,the union algorithm used PTS to process OFDM signal to reduce PAPR,then the result was further processed by clipping to reduce PAPR.As long as the two methods of reducing the PAPR level were selected properly,it could reduce PAPR and the computational complexity,and not have too much noise.Simulations have proved t...