Status and Recent Advances on Forward Error Correction Technologies for Lightwave Systems: A Tutorial Introduction

15 August 2014

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Since the introduction of coherent transponders, forward error correction based on soft decision is now established in optical communication. In this tutorial, we give a descriptive introduction of one class of commonly used codes, namely LDPC codes. Also we discuss new developments such as convolutional LDPC codes and show how they can be employed as potential candidates for future optical communication systems.