降低OFDM峰均功率比的选择性映射和部分传输序列技术  

Selective Mapping and Partial Transmit Sequence Schemes of Reduce PAPR in OFDM Systems

作　　者：侯楚林[1] 

机构地区：[1]中国人民解放军91872部队

出　　处：《现代计算机》2013年第23期3-6,共4页Modern Computer

摘　　要：对用于降低OFDM系统的峰均功率比的选择性映射SLM和部分传输序列PTS两种技术进行分析研究,并进行相应的仿真。仿真结果表明PTS方法的性能要优于SLM方法,且PTS方法中随着支路数的增加,PAPR性能越好。Based on the definition of the PAPR in OFDM systems, investigates the PAPR reduction performance with two different PAPR reduction methods： the SLM and PTS. Conducts comprehensive analysis and comparison in terms of all possible influencing factors and PAPR re- duction performance, respectively. Obtains some research findings based on the simulation results. The results verify that PTS method provides a better PAPR reduction performance compared to SLM method and the probability of high PAPR with increasing the number of sub-blocks in PTS technique decreases obviously, compared to the original OFDM signal. In addition, SLM algorithm is more suitable if system can tolerate more redundant information; otherwise, FFS algorithm is more acceptable when complexity becomes the first consider- ing factor.

关 键 词：正交频分复用(OFDM) 峰均功率比 选择性映射(SM) 部分传输序列(PTS) 

分 类 号：TN919.3[电子电信—通信与信息系统]