Title :
Enhanced digital polarization demultiplexation via CMA step size adaptation for PM-QPSK coherent receivers
Author :
Ribeiro, Vitor B. ; Oliveira, Júlio C R F ; Diniz, Julio C M ; Rosa, Eduardo S. ; Silva, Reginaldo ; Silva, Edson P. ; Carvalho, Luis H. ; Bordonalli, Aldário C.
Author_Institution :
CPqD, Campinas, Brazil
Abstract :
Fixed step size CMA can exhibit serious penalties due to rapid channel variations during coherent receiver polarization demultiplexing. We propose and experimentally demonstrate two CMA gain adaptation methods that improve dynamic equalizer tracking and convergence.
Keywords :
convergence; demultiplexing; optical fibre communication; optical receivers; quadrature phase shift keying; CMA step size adaptation; PM-QPSK coherent receivers; convergence; dynamic equalizer tracking; enhanced digital polarization demultiplexation; rapid channel variations; Bit error rate; Convergence; Heuristic algorithms; Optical noise; Receivers; Signal processing algorithms; Signal to noise ratio;
Conference_Titel :
Optical Fiber Communication Conference and Exposition (OFC/NFOEC), 2012 and the National Fiber Optic Engineers Conference
Conference_Location :
Los Angeles, CA
Print_ISBN :
978-1-4673-0262-3
