Joint Statistics and MLSD in Filtered Incoherent High-Speed Fiber-Optic Communications

• 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.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)

Keyword

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

Publication and Content Type

art (subject category)

ref (subject category)