PTS的不同分割方法对OFDM系统PAPR性能的影响

The Effect of PTS Segmentation on the PAPR Performance of OFDM System

部分传输序列(PTS)方法能够有效地解决OFDM信号的峰值平均功率比(PAPR)过高的问题,但是PTS基本算法的计算复杂度却较高,因此可采用适当的分割方法来降低计算的复杂度.在分析了相邻、随机和交织分割方法基本原理的基础上,通过仿真进一步验证了三种方法的有效性,并重点仿真分析了相邻分割方法中不同的分组数对OFDM系统PAPR的影响.仿真结果表明,PTS的不同分割方法均可有效地降低系统的PAPR,但需要考虑算法的计算复杂度.

The partial transmitted sequences （PTS） method can effectively reduce PAPR of the OFDM signals, but the basic algorithm of PTS has higher computational complexity, the appropriate segmentation method can reduce the computational complexity. Based on analyzing the basic principles of segmentation method, the simulation further verifies the validity of the three methods, and focusing on analysis of the effect of OFDM system PAPR of different groups of the adjacent segmentation, Numerical results show that different segmentation of PTS can all effectively reduce PAPR, but must consider the computational complexity of the algorithm.