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

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8 Author(s)
Jiangnan Xiao ; Key Lab. for Micro/Nano Opto-Electron. Devices of the Minist. of Educ., Hunan Univ., Changsha, China ; Jianjun Yu ; Xinying Li ; Qi Tang
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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.

Published in:

Optical Communications and Networking, IEEE/OSA Journal of  (Volume:4 ,  Issue: 10 )

Date of Publication:

Oct. 2012

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