Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1538820 | Optics Communications | 2010 | 5 Pages |
Abstract
In order to solve the problem of ill-convergence for constant modulus algorithm (CMA) in polarization division multiplexing system with optical coherent receivers, a modified CMA based on bit error rate (BER) aiding to control initial tap setup, named as BER-Aiding CMA (BA-CMA), is proposed in this paper. By analyzing the principle of CMA for adaptive digital equalization and polarization demultiplexing, the convergence behavior that leads to undesirable result is evaluated and therefore BA-CMA is proposed. Simulation results show that the proposed algorithm is able to overcome the undesirable convergence effectively and keep inherent advantages of CMA at the same time.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Hai Zhu, Xue Chen, Weiqin Zhou, Min Zhang,