A novel method for the improvement of power efficiency in high peak-to-average-power ratio communication systems  

作　　者：REN ZhiYuan ZHANG HaiLin GUO Kai 

机构地区：[1]State Key Laboratory of Integrated Services Network, Xidian University, Xi'an 710071, China [2]Aerospace Long March Launch Vehicle Technology Co. Ltd., Beijing 100076, China

出　　处：《Science China(Information Sciences)》2010年第8期1697-1702,共6页中国科学（信息科学）（英文版）

基　　金：supported by the 111 Project (Grant No. B08038);the State Key Laboratory of Integrated Services Networks (Grant No. ISN090105);the Program for New Century Excellent Talents in University (GrantNo. NCET-08-0810);the National Natural Science Foundation of China (Grant No. 60772137);UK-ChinaScience Bridges: R&D on 4G Wireless Mobile Communications, Special Foundation of China Postdoctoral Science Foundation (Grant No. 200902588);China Postdoctoral Science Foundation (Grant No. 20080441166);the Fundamental Research Funds for the Central Universities (Grant No. 72105377)

摘　　要：To solve the problem of low power efficiency of power amplifiers （PA） in the high peak-to-averagepower ratio （PAPR） communication system, a novel signal decomposed amplifier structure has been proposed in order to decrease the energy consumption and increase the power efficiency of PA. The high PAPR signal can be decomposed into several low PAPR branch signals, linearized and amplified in parallel. This structure can reduce the PAPR of branch signals and improve the power efficiency of PA. The simulation results indicate that the power efficiency will be remarkably increased.To solve the problem of low power efficiency of power amplifiers （PA） in the high peak-to-averagepower ratio （PAPR） communication system, a novel signal decomposed amplifier structure has been proposed in order to decrease the energy consumption and increase the power efficiency of PA. The high PAPR signal can be decomposed into several low PAPR branch signals, linearized and amplified in parallel. This structure can reduce the PAPR of branch signals and improve the power efficiency of PA. The simulation results indicate that the power efficiency will be remarkably increased.

关 键 词：Green Radio power amplifier signal decomposed 

分 类 号：TN914[电子电信—通信与信息系统] TM44[电子电信—信息与通信工程]