Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2014, Vol. 37 ›› Issue (4): 44-48.doi: 10.13190/j.jbupt.2014.04.010

• Papers • Previous Articles     Next Articles

Improved Clipping and Filtering Algorithm Applied to Reduce PAPR

HAN Dong-sheng1,2, YANG Wei2, LIU Wei2   

  1. 1. School of Electrical and Electronic Engineering, North China Electric Power University, Hebei Baoding 071003, China;
    2. School of Electronic and Information Engineering, Beijing Jiaotong University, Beijing 100044, China
  • Received:2013-09-24 Online:2014-08-28 Published:2014-08-09

Abstract:

An improved clipping and filtering algorithm was proposed to improve the currently used algorithms for reducing PAPR of OFDM with high computational complexity and serious distortion. The algorithm divides OFDM signals into odd signals and even signals. And the two kinds of signals are clipped and filtered. Simulation shows that, in comparison with currently used clipping and filtering algorithms, the algorithm is with better PAPR performance with lower computational complexity and filters in-band interference more obviously. The BER performance of the system can be improved through the algorithm.

Key words: peak-to-average power ratio, clipping, distortion, noise cancellation

CLC Number: