Title :
Low-complexity, blind phase recovery for coherent receivers using QAM modulation
Author :
Zhou, Xiang ; Sun, Yifan
Author_Institution :
AT&T Labs.-Res., Middletown, NJ, USA
Abstract :
We propose a new hybrid PLL/ML phase estimation method for low-complexity, blind phase recovery for M-QAM modulation. The linewidth tolerance of the proposed method is more than one order of magnitude better than PLL-only method.
Keywords :
optical modulation; optical receivers; phase locked loops; quadrature amplitude modulation; M-QAM modulation; ML phase estimation method; PLL phase estimation method; blind phase recovery; coherent receiver; linewidth tolerance; Bit error rate; Complexity theory; Maximum likelihood estimation; Optical filters; Optical noise; Phase locked loops; Quadrature amplitude modulation;
Conference_Titel :
Optical Fiber Communication Conference and Exposition (OFC/NFOEC), 2011 and the National Fiber Optic Engineers Conference
Conference_Location :
Los Angeles, CA
Print_ISBN :
978-1-4577-0213-6
