摘要
本文针对OFDM系统中高峰均比问题,在基于正交映射降低峰平比的方法上提出了一种改进方案——随机分组正交映射(Random Group Design SLM),即在SLM前加入了对信号随机分组处理,再选择峰均比最小的一路信号作为输出,本文并对这种方法进行了多种条件下的系统仿真,实验结果表明这种方法在改善OFDM传输信号峰平比上,比SLM方法有明显的改善。
The signals of Orthogonal Frequency Division Multiplexing （OFDM） has a high Peak to Average Power Ratio（PAPR）, this message propose a new scheme to reduce the PAPR of OFDM signals, h called Random Group Design SLM（RGDSLM）.this method produce processing of random allocation before SLM ,then chose the best signal for transmission.our message give out many system simulation based this new scheme. The result show that this method has a better effect on reducing PAPR of OFDM signals than SLM.
出处
《电子设计工程》
2014年第24期42-44,共3页
Electronic Design Engineering
