Title :
Novel delay-division-multiplexing OFDMA passive optical networks enabling low-sampling-rate ADC
Author :
Chia-Chien Wei ; Huan-Ching Liu ; Chun-Ting Lin
Author_Institution :
Dept. of Photonics, Nat. Sun Yat-sen Univ., Kaohsiung, Taiwan
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.
Keywords :
OFDM modulation; analogue-digital conversion; frequency division multiple access; passive optical networks; subcarrier multiplexing; FFT size reduction; OFDMA-PON; ONU; analog-to-digital converter; delay controlling; delay division multiplexing OFDMA passive optical network; low sampling rate ADC; Delays; Erbium-doped fiber amplifiers; OFDM; Optical fibers; Passive optical networks;
Conference_Titel :
Optical Fiber Communications Conference and Exhibition (OFC), 2015
Conference_Location :
Los Angeles, CA
