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Multi-population genetic algorithm for peak-to-average power ratio suppression in an optical OFDM transmission system

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Abstract

We proposed and experimentally demonstrated the parallel multi-population genetic algorithm (MPGA)-based selected mapping (SLM) technique to reduce the peak-to-average power ratio of the optical orthogonal frequency-division multiplexing system. By introducing the parallel genetic algorithm (GA), the MPGA-SLM can effectively escape the local optimization of the conventional GA and attains fast convergence on the global optimization. Compared with the conventional SLM method, we experimentally achieved 1-dB performance improvement at a 3.8×103 bit error ratio by utilizing the MPGA-SLM in the back-to-back case and that of 0.7 dB in the 30-km single-mode fiber transmission case.

© 2018 Optical Society of America

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