Joint Statistics and MLSD in Filtered Incoherent High-Speed Fiber-Optic Communications
Journal article, 2010
In this paper, signal statistics and their utilization for detection in narrowly filtered equalized high-speed fiber-optic communications are investigated experimentally. Tradeoffs between log-likelihood metric applications and oversampling are covered in detail. It is, for the first time, demonstrated that performance loss in bandwidth-limited systems can be nearly fully recovered (to within 0.5 dB) by taking advantage of band-width-limitation-induced noise correlations and oversampling.
analytical expressions
fiber-optic communications
Viterbi algorithm
likelihood sequence estimation
detection
performance
optical amplifiers
maximum-likelihood sequence
transmission
polarization-mode dispersion
lightwave systems
bit-error-rate
Colored noise
chromatic
receiver
dispersion