Title :
Blind adaptive equalization algorithm based on constellation transformation for DP 16-QAM systems
Author :
Rezania, M.A. ; Ke, J.H. ; Karar, A.S. ; Gao, Yuan ; Cartledge, J.C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Queen´s Univ., Kingston, ON, Canada
Abstract :
We demonstrate a novel blind equalizer based on a constellation transformation, where a 16-QAM signal is mapped into a QPSK constellation. Subsequently, the filter coefficients for an adaptive equalizer are updated using a constant modulus or decision-directed cost function.
Keywords :
blind equalisers; quadrature amplitude modulation; DP 16-QAM systems; blind adaptive equalization algorithm; blind equalizer; constant modulus; constellation transformation; decision directed cost function; filter coefficients; Blind equalizers; Constellation diagram; Optical fibers; Optical receivers; Phase shift keying; Signal processing algorithms;
Conference_Titel :
Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC), 2013
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4799-0457-0
