Title :
Iterative Minimum Mean Square Error Equalization for Optical Fiber Communication Systems
Author :
Yang, Chuanchuan ; Yang, Feng ; Wang, Ziyu
Author_Institution :
Peking Univ., Beijing
Abstract :
In this letter, considering the photodetector-induced nonlinearity and non-Gaussian noise in optical fiber communication systems, a new iterative equalization algorithm based on the minimum mean square error criterion, called iterative minimum mean square error equalization, is derived to effectively mitigate the intersymbol interference caused by polarization-mode dispersion and chromatic dispersion. Compared with maximum-likelihood sequence estimation equalization, the proposed algorithm presents a better capability of improving the performance of the receiver.
Keywords :
intersymbol interference; iterative methods; mean square error methods; optical fibre communication; optical fibre dispersion; optical fibre polarisation; optical receivers; chromatic dispersion; intersymbol interference; iterative minimum mean square error equalization; maximum-likelihood sequence estimation equalization; nonGaussian noise; optical fiber communication; optical receiver; photodetector-induced nonlinearity; polarization-mode dispersion; Equalizers; Intersymbol interference; Iterative algorithms; Maximum likelihood estimation; Mean square error methods; Optical fiber communication; Optical fibers; Optical filters; Optical noise; Optical receivers; Iterative equalization; maximum-likelihood sequence estimation (MLSE); minimum mean square error (MMSE); optical fiber communications (OFCs);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.905127
