New Branch Metrics for MLSE Receivers Based on Polarization Diversity for PMD Mitigation

Author

Bosco, Gabriella ; Poggiolini, Pierluigi ; Visintin, Monica ; Liangchuan, Li ; Ming, Chen

Author_Institution

Dipt. di Elettron., Politec. di Torino, Torino, Italy

Volume

27

Issue

21

fYear

2009

Firstpage

4793

Lastpage

4803

Abstract

In this paper, we analyze the performance of polarization-diversity receivers employing maximum-likelihood sequence estimation (MLSE) to combat the effects of polarization mode dispersion (PMD) for both the intensity-modulation direct detection (IMDD) and duobinary modulation formats at 43 Gb/s. We propose and study several parametric branch metrics, showing that the use of MLSE receivers based on polarization diversity with appropriate branch metrics allows to cancel out the high penalty incurred by standard MLSE receivers in the presence of PMD.

Keywords

diversity reception; intensity modulation; maximum likelihood sequence estimation; radio receivers; MLSE receivers; PMD mitigation; branch metrics; duobinary modulation formats; intensity modulation direct detection; maximum-likelihood sequence estimation; polarization diversity receivers; polarization mode dispersion; Maximum-likelihood sequence estimation (MLSE); optical communications; polarization mode dispersion (PMD);

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2009.2026720

Filename

5159371