Title :
Cycle slip-mitigating turbo demodulation in LDPC-coded coherent optical communications
Author :
Koike-Akino, Toshiaki ; Kojima, Keisuke ; Millar, David S. ; Parsons, Kieran ; Miyata, Yoshikuni ; Matsumoto, Wataru ; Sugihara, Tomoyuki ; Mizuochi, Takashi
Author_Institution :
Mitsubishi Electr. Res. Labs. (MERL), Cambridge, MA, USA
Abstract :
We show that an iterative demodulation with soft-decision feedback information from FEC decoder can efficiently mitigate cycle slips. With 3% pilot insertion, the turbo QPSK demodulation achieves 1.05dB gain even in the presence of frequent cycle slips.
Keywords :
demodulation; iterative methods; light coherence; optical communication; parity check codes; quadrature phase shift keying; FEC decoder; LDPC-coded coherent optical communication; cycle slip-mitigating turbo demodulation; iterative demodulation; soft-decision feedback information; turbo QPSK demodulation; Bit error rate; Decoding; Demodulation; Forward error correction; Iterative decoding; Phase shift keying;
Conference_Titel :
Optical Fiber Communications Conference and Exhibition (OFC), 2014
Conference_Location :
San Francisco, CA
Print_ISBN :
978-1-5575-2994-7
DOI :
10.1364/OFC.2014.M3A.3
