WANG Zhong-peng,XIAO Jiang-nan,LI Fan,CHEN Lin.Hadamard precoding for PAPR reduction in optical direct detection OFDM systems[J].Optoelectronics Letters,2011,7(5):363-366 Hadamard precoding for PAPR reduction in optical direct detection OFDM systems Author Name Affiliation WANG Zhong-peng  School of Information and Electronic Engineering, Zhejiang University of Science and Technology； School of Computer and Communication, Hunan University；  XIAO Jiang-nan  School of Computer and Communication, Hunan University；  LI Fan  School of Computer and Communication, Hunan University；  CHEN Lin  School of Computer and Communication, Hunan University；  Abstract:       The high peak-to-average power ration (PAPR) values of optical orthogond frequency division multiplexing (OFDM) signal limit the system nonlinear tolerance (NLT). In this paper, a novel method based on Hadamard precoding is proposed to reduce the peak-to-average power ratio in optical direct detection OFDM system. The proposed scheme is successfully applied to an experimental system of optical direct-detection OFDM signal transmission through fiber. In this experiment, the 2.5 Gbit/s binary phas... Hits: 3950 Download times: 209 View Full Text    Download reader