论文部分内容阅读
OFDM系统的一个主要缺点是过高的问题。本文分析了OFDM系统中出现过高PAPR的原因和对系统造成的损害以及PAPR的分布问题,针对几种传统解决方案复杂度较高的缺点,仿真并研究了基于信号空间扩展降低PAPR的方法,并提出了利用子载波数较小系统模块化搭建子载波数较大系统的方法。
A major drawback of OFDM systems is the high problem. In this paper, we analyze the reason of excessive PAPR in OFDM system and the damage caused to the system as well as PAPR distribution. In view of the high complexity of several traditional solutions, this paper simulates and researches the PAPR reduction method based on signal space expansion, And put forward a method of modularizing large number of subcarriers using a system with a small number of subcarriers.