A novel improved SLM scheme of the <i>PAPR</i> reduction technology in CO-OFDM systems

Jian-guo Yuan; Qian Shen; Jing-xin Wang; Yong Wang; Jin-zhao Lin; Yu Pang

doi:10.1007/s11801-017-6265-9

Optoelectronics Letters ›› , Vol. 13 ›› Issue (2) : 138-142. DOI: 10.1007/s11801-017-6265-9

Article

A novel improved SLM scheme of the PAPR reduction technology in CO-OFDM systems

Jian-guo Yuan¹^,²^,^a ,
Qian Shen¹^,² ,
Jing-xin Wang¹^,² ,
Yong Wang¹ ,
Jin-zhao Lin² ,
Yu Pang²

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Abstract

The higher peak-to-average power ratio (PAPR) is a major shortcoming of coherent optical orthogonal frequency division multiplexing (CO-OFDM) systems. Selective mapping (SLM) technology can effectively reduce the probability of high PAPR, but it has higher computational complexity, and requires additional bandwidth to transmit the side information, which will affect the transmission efficiency of the system. In response to these shortcomings, a novel improved SLM (NI-SLM) scheme with low complexity and without side information is proposed. Simulation results show that the proposed scheme can exponentially reduce the computational complexity, and the bit error rate (BER) performance can greatly approach the original signal. What’s more, it shows the better PAPR reduction performance.

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Jian-guo Yuan, Qian Shen, Jing-xin Wang, Yong Wang, Jin-zhao Lin, Yu Pang. A novel improved SLM scheme of the PAPR reduction technology in CO-OFDM systems. Optoelectronics Letters, , 13(2): 138‒142 https://doi.org/10.1007/s11801-017-6265-9

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This work has been supported by the National Natural Science Foundation of China (Nos.61472464, 61671091 and 61471075), and the Natural Science Foundation of Chongqing Science and Technology Commission (No.cstc2015jcyjA0554).