Title :
Design of enhanced channel equalizers for adaptive zero-guard-interval CO-OFDM systems
Author :
Wei Wang ; Qunbi Zhuge ; Yuliang Gao ; Plant, David V.
Author_Institution :
Dept. of Electr. & Comput. Eng., McGill Univ., Montreal, QC, Canada
Abstract :
We propose the design of frequency domain block least-mean-square and recursive-least-square equalizers for adaptive zero-guard-interval CO-OFDM systems. Improvements in the channel estimation accuracy and channel tracking speed are experimentally and numerically demonstrated.
Keywords :
OFDM modulation; channel estimation; equalisers; frequency-domain analysis; least mean squares methods; optical modulation; recursive estimation; adaptive zero-guard-interval CO-OFDM systems; channel equalizer enhancement; channel estimation accuracy; channel tracking speed; coherent optical orthogonal frequency domain multiplexing; frequency domain block recursive-least-square equalizer; frequency-domain block least-mean-square equalizer; Adaptive systems; Bit error rate; Digital signal processing; Equalizers; Frequency-domain analysis; Optical attenuators; Optical fibers;
Conference_Titel :
Optical Fiber Communications Conference and Exhibition (OFC), 2015
Conference_Location :
Los Angeles, CA
