摘要
正交频分复用(OFDM)系统的主要缺点是峰均功率比(PAPR),它的增大严重地降低了发射机中高功率放大器(HPA)的效率。本文在传统PTS算法的基础上,综合分析了降低PAPR的各种次优化PTS算法,包括:IPTS算法、APTS算法、SO-PTS算法、DL-PTS算法、SA-PTS算法和E-PTS算法等。并对各算法的流程、复杂度和性能进行了对比。最后进行了性能仿真,提出了次优化PTS的发展方向。
The main drawback of Orthogonal Frequency Division Multiplexing (OFDM) systems is the high peak-to-average lower ratio (PAPR), which significantly reduces the efficiency of the transmit high power amplifier (HPA). This paper is based on the traditional PTS algorithm. Various sub- optimize PTS algorithm for reducing PAPR are analysed synthetically, including: IPTS, AVIS, SO-PTS, DL-PTS, SA-PTS and E-PTS algorithm,etc.. And has carried on the contrast to the procedure, complexity and performance of every algorithm. It Carries on performance simulation finally, proposes developing direction of sub-optimize PTS algorithm.
出处
《西安邮电学院学报》
2008年第5期27-30,59,共5页
Journal of Xi'an Institute of Posts and Telecommunications