Adaptive Electronic Equalization Using Higher-Order Statistics for PMD Compensation in Long-Haul Fiber-Optic Systems
11 May 2002
LMS is suboptimal for ASE-dominant systems but various dithering approaches suffer from slow adaptation rate without guarantee of convergence. We propose to apply higher-order algorithms in Least-Mean-Nth-Order family resulting in > 24 dB less in OSNR penalty.