Performance analysis of peak cancellation in OFDM systems  

作　　者：XIAO Yue BAI WenLing DAN LiLin WU Gang LI ShaoQian 

机构地区：[1]National Key Laboratory of Science and Technology on Communications,University of Electronic Science and Technology of China,Chengdu 610054,China

出　　处：《Science China(Information Sciences)》2012年第4期789-794,共6页中国科学（信息科学）（英文版）

基　　金：supported by National Basic Research Program of China(Grant No.2007CB310604);International Science & Technology Cooperation Project of Ministry of Science & Technology of China(Grant No.2008DFA11700);National Natural Science Foundation of China(Grant No.60902026)

摘　　要：Peak cancellation is a class of peak-to-average power ratio （PAPR） reduction techniques for orthogohal frequency division multiplexing （OFDM）. It can control the PAPR and out-of-band radiation simultaneously at the cost of additional interference. In this paper, the interference of peak cancellation is modeled and analyzed so as to evaluate the degradation of system performance. Furthermore, through theoretical analysis, a closed form of the BER performance is derived for OFDM with popular modulation schemes such as QPSK and 16QAM. Finally, the analytical results are verified by simulations.Peak cancellation is a class of peak-to-average power ratio （PAPR） reduction techniques for orthogohal frequency division multiplexing （OFDM）. It can control the PAPR and out-of-band radiation simultaneously at the cost of additional interference. In this paper, the interference of peak cancellation is modeled and analyzed so as to evaluate the degradation of system performance. Furthermore, through theoretical analysis, a closed form of the BER performance is derived for OFDM with popular modulation schemes such as QPSK and 16QAM. Finally, the analytical results are verified by simulations.

关 键 词：OFDM peak cancellation PAPR 

分 类 号：TN929.5[电子电信—通信与信息系统] TP393.08[电子电信—信息与通信工程]