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We propose a cost-efficient method of multiple receiver optical OFDM system that reduces the ADC requirement and FFT size of receiving. Aided by signal predistortion, aliasing free signal can be retrieved independently and directly at the low bandwidth receivers. Simulation and experiment results are given.
Multiple channels of ADCs for high bit rate CO-OFDM system is proposed by jointly processing outputs of all channels with a simple algorithm. The required sampling rate of ADCs is reduced lower than Nyquist rate.
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