Title :
A Low-Cost Inband FEC Scheme for SONET/SDH Optical Metro Networks
Author :
Tychopoulos, Afxendios ; Papagiannakis, Ioannis ; Klonidis, Dimitrios ; Tzanakaki, Anna ; Kikidis, John ; Koufopavlou, Odysseas ; Tomkos, Ioannis
Author_Institution :
Dept. of Electr. & Comput. Eng., Patras Univ.
Abstract :
A novel inband forward-error correction (FEC) method, devised for the electronic-mitigation of physical optical transmission impairments, is implemented and experimentally demonstrated. The proposed inband-FEC scheme, Free-Of-Charge Uniform Shield (FOCUS), is an inherently low-cost approach, applicable to standard synchronous digital hierarchy/synchronous optical network rates, allowing optically transparent signal propagation over longer distances. The performance/efficiency of the FOCUS method is evaluated in terms of tolerance against optical signal-to-noise ratio degradation and chromatic-dispersion, associated with the signal transmission over standard single-mode fiber. Bit-error-rate measurements and coding gain calculations at the standard STM-64 rate (9.953 Gb/s) reveal significant coding-gain improvement for all cases examined
Keywords :
SONET; error statistics; forward error correction; metropolitan area networks; optical fibre dispersion; optical fibre networks; 9.953 Gbit/s; bit-error-rate measurements; chromatic-dispersion; coding gain calculations; electronic mitigation; free-of-charge uniform shield; inband forward error correction; low-cost forward error correction; optical metro networks; optical signal-to-noise ratio degradation; optical transmission impairments; optically transparent signal propagation; signal transmission; standard single-mode fiber; synchronous digital hierarchy; synchronous optical network; All-optical networks; Costs; Degradation; Optical fiber communication; Optical fiber networks; Optical noise; Optical propagation; SONET; Signal to noise ratio; Synchronous digital hierarchy; Forward-error correction (FEC); inband forward-error correction (FEC) coding; metropolitan area networks; optical communication;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.887345
