现代电子技术2016，Vol.39Issue(21)：7-10,4.DOI:10.16652/j.issn.1004-373x.2016.21.002
减小WT-OFDM系统PAPR的GA-SLM方法分析
Analysis of GA-SLM method to reduce PAPR of WT-OFDM system
摘要
Abstract
In order to reduce the high peak-to-average power ratio(PAPR)of the orthogonal frequency division multiplexing (OFDM)system,a selective mapping(SLM)method is adopted. The SLM method is an effective method to reduce the PAPR of the OFDM system,and can′t produce the signal distortion. Since the SLM method needs to set the cyclic prefix,the discrete wavelet transform(WT)is used to improve the OFDM system,and the genetic algorithm(GA)is used to search the optimum phase rotation factor. The simulation results show that,in comparison with the traditional GA-SLM method and SLM method,the proposed method is more effective to reduce PAPR.关键词
正交频分复用/峰值平均功率比/选择映射法/离散小波变换/遗传算法Key words
OFDM/PAPR/SLM method/discrete WT/GA分类
信息技术与安全科学引用本文复制引用
林志阳,丁洁,王兆晖,白勇,段玉聪..减小WT-OFDM系统PAPR的GA-SLM方法分析[J].现代电子技术,2016,39(21):7-10,4.基金项目
国家自然科学基金项目(61062006,61261024, 61363007) （61062006,61261024, 61363007）
海南省自然科学基金项目(20156250) （20156250）
海南省科技合作专项基金(KJHZ2015-23) （KJHZ2015-23）
