摘要
正交频分复用(OFDM)作为一种高速信息传输的技术,具有很好的抗多径干扰能力,高效的频谱利用率,但它的一个主要缺点就是具有很高的峰均功率比(PAPR)。目前有许多方案用来降低OFDM信号的峰均功率比,选择映射(SLM)方法就是其中一种。文章在传统的SLM方法基础上进行改进,提出了一种新的方法,该方法在大幅度降低系统复杂度的同时,也提高了系统的性能。
OFDM as a high-speed information transmisson technology, has good resistance to multipath interference,efficient spectrum utilization,but its main disadvantage is that high peak to average power ratio（PAPR）.There are many programs to reduce the PAPR of OFDM system,SLM method is one of them.The article proposed a new method based on the traditional SLM method.The new method can significantly reduce the complexity of system while also improved the system performance.
出处
《信息通信》
2010年第1期47-49,58,共4页
Information & Communications
