Peak-to-average power ratio reduction for DCO-OFDM underwater optical wireless communication system based on an interleaving technique

Jurong Bai; Chenfei Cao; Yi Yang; Feng Zhao; Xiangjun Xin; Abdel-Hamid Soliman; Jiamin Gong

doi:10.1117/1.OE.57.8.086110

21 August 2018 Peak-to-average power ratio reduction for DCO-OFDM underwater optical wireless communication system based on an interleaving technique

Jurong Bai, Chenfei Cao, Yi Yang, Feng Zhao, Xiangjun Xin, Abdel-Hamid Soliman, Jiamin Gong

Author Affiliations +

Funded by: National Natural Science Foundation of China (NSFC), Shaanxi Provincial Education Department

Optical Engineering, Vol. 57, Issue 8, 086110 (August 2018). https://doi.org/10.1117/1.OE.57.8.086110

Abstract

In underwater direct current-biased optical orthogonal frequency-division multiplexing (DCO-OFDM) system, high peak-to-average power ratio (PAPR) brings in-band distortion and out-of-band power. It also decreases the signal-to-quantization noise ratio of the analog-to-digital converter and the digital-to-analog converter. A time–frequency-domain interleaved subbanding scheme is proposed to reduce the PAPR of underwater DCO-OFDM system with low computation complexity and bit error rate (BER). The system BER is evaluated by the distances of the underwater optical wireless communication (UOWC), as well as by the signal attenuation of the UOWC channel. A least-square channel estimation method is adopted for adaptive power amplification at the receiver side, to further decrease the system BER.

CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Jurong Bai, Chenfei Cao, Yi Yang, Feng Zhao, Xiangjun Xin, Abdel-Hamid Soliman, and Jiamin Gong "Peak-to-average power ratio reduction for DCO-OFDM underwater optical wireless communication system based on an interleaving technique," Optical Engineering 57(8), 086110 (21 August 2018). https://doi.org/10.1117/1.OE.57.8.086110

Received: 8 June 2018; Accepted: 27 July 2018; Published: 21 August 2018

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