Abstract

We propose a new method to reduce peak to average power ratio (PAPR) in CO-OFDM system by applying chicken swarm optimization (CSO) algorithm to optimize the initial phase of the subcarriers. Stimulation result shows that PAPR of CSO optimized signal is reduced by 5.5dB and 1.5dB compared with that of original signal and particle swarm optimization (PSO) optimized signal and BER performance is improved.

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