使用PTS和SLM联合技术降低FBMC-OQAM系统的PAPR

Reduction of PAPR for FBMC-OQAM System by Using PTS and SLM Joint Technology

滤波器组多载波系统(FBMC)已被认真考虑用于第五代移动通信无线接入技术。带有偏移量的滤波器组多载波调制(FBMC-OQAM)是一种多载波技术,因此具有较高的峰均功率比(PAPR),而大部分传统OFDM降低PAPR的技术不适用于FBMC。为了克服这个问题,对传统的选择性映射(SLM)方法和部分传输序列(PTS)方法进行优化改进,提出了在FBMC-OQAM系统中结合SLM和PTS(SLM-PTS)方法来降低PAPR。仿真结果表明,SLM-PTS方法能显著降低FBMC-OQAM系统的PAPR。

FBMC(Filter Bank Multi-Carrier System)system is now carefully considered for application in the fifth generation mobile communication radio access technology.FBMC-OQAM(Filter Bank Multi-Carrier System with offset modulation)is a multi-carrier technique and therefore has a fairly high PAPR(Peak-to-Average Power Ratio).And however,most traditional OFDM-reduced PAPR techniques are not available for FBMC.In order to overcome this problem,the traditional SLM(selective mapping)method and PTS(Partial Transmission Sequence)method are optimized and improved.A combination of SLM and PTS methods for the FBMC-OQAM system is proposed,so as to reduce PAPR.The comparison of simulation results indicates that the SLM-PTS method could significantly reduce the PAPR of FBMC-OQAM system.