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Novel Delay-Division-Multiplexing OFDMA Passive Optical Networks Enabling Low-Sampling-Rate ADC

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Abstract

Without extra hardware, the proposed delay-division-multiplexing scheme reduces sampling rate and FFT size at ONUs in OFDMA-PONs to 1/2~1/32 of conventional ones. Sending preprocessed signals, various aliasing-free subcarriers can be received dynamically by controlling delays.

© 2015 Optical Society of America

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