Hadamard transform combined with companding transform technique for PAPR reduction in an optical direct-detection OFDM system

Author

Xiao, Jiangnan ; Yu, Jianjun ; Li, Xinying ; Tang, Qi ; Chen, Hongxian ; Li, Fan ; Cao, Zizheng ; Chen, Lin

Author_Institution

Key Lab. for Micro/Nano Opto-Electron. Devices of the Minist. of Educ., Hunan Univ., Changsha, China

Volume

4

Issue

10

fYear

2012

Firstpage

709

Lastpage

714

Abstract

In this paper, we propose a novel method to reduce the high peak-to-average power ratio (PAPR) of the optical orthogonal frequency division multiplexing (OFDM) signal. The method is based on the technique of the Hadamard transform combined with a companding transform. We experimentally demonstrate that, in an optical intensity-modulation direct-detection OFDM transmission system, the hybrid method has better performance in reducing the PAPR compared with the case of applying only the Hadamard transform or only a companding transform.

Keywords

Hadamard transforms; OFDM modulation; intensity modulation; optical communication; optical modulation; signal detection; Hadamard transform technique; PAPR reduction; companding transform technique; high peak-to-average power ratio; optical direct-detection OFDM system; optical intensity-modulation direct-detection OFDM transmission system; optical orthogonal frequency division multiplexing signal; Bit error rate; Nonlinear optics; Optical fibers; Peak to average power ratio; Transforms; Companding transform; Fiber optics communication; Hadamard transform; Hadamard transform combined with companding transform; Orthogonal frequency division multiplexing (OFDM); Peak-to-average power ratio (PAPR);

fLanguage

English

Journal_Title

Optical Communications and Networking, IEEE/OSA Journal of

Publisher

ieee

ISSN

1943-0620

Type

jour

DOI

10.1364/JOCN.4.000709

Filename

6331131