A Simple and High-Performance Method for Combining Soft-Decision FEC with Differential Encoding in100 Gbps Dual-Polarization QPSK System
Résumé
By a joint design of FEC and modulation, we demonstrate that it is possible to associate strong SD-FEC and differentially-encoded QPSK systems with negligible coding gain penalty and minor modifications in existing transceivers. The resulting system is robust to cycle slips.