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PAPR Reduction in VLC-OFDM System Using a Combination of Shuffled Frog Leaping Algorithm and Hill-Climbing Algorithm

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Abstract

Orthogonal frequency division multiplexing (OFDM) technique has been widely used in visible light communications (VLC) system (VLC-OFDM). To minimize the performance degradation of VLC-OFDM system caused by high peak-to-average power ratio (PAPR), we propose a SFLAHC-PTS technique to reduce the PAPR of signal in this paper. The proposed SFLAHC-PTS is an improved PTS technique which takes advantages of shuffled frog leaping algorithm and hill-climbing algorithm to optimize conventional PTS technique, reducing the computational complexity of conventional PTS technique. We compare SFLAHC-PTS technique with other PTS techniques on the CCDF performance, as well as computational amount to analyze the superiority of SFLAHC-PTS technique. The results show that the proposed technique can greatly reduce the computational load of conventional PTS technique and has better performance in reducing PAPR than GA-PTS, SFLA-PTS technique.

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Acknowledgments

This work was financially supported by Natural Science Foundation of China (Grant Nos. 61172047 and 91123035), Xinjiang Provincial Natural Science Foundation (Grant No. 2013211A035), Open Foundation from Metal Resources Strategic Research Institute of Central South University, and Hunan Provincial Natural Science Foundation (Grant No. 14jj2013).

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Authors and Affiliations

  1. School of Physics and Electronics, Central South University, Lushan South Road, Changsha, 410083, China

    Wei Xiao, Honggui Deng, Yonlu Li & Shan Jiang

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  1. Wei Xiao
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  2. Honggui Deng
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  3. Yonlu Li
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  4. Shan Jiang
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Correspondence to Honggui Deng.

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Xiao, W., Deng, H., Li, Y. et al. PAPR Reduction in VLC-OFDM System Using a Combination of Shuffled Frog Leaping Algorithm and Hill-Climbing Algorithm. Wireless Pers Commun 97, 3757–3771 (2017). https://doi.org/10.1007/s11277-017-4697-y

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