title: Signal Statistics and Maximum Likelihood Sequence Estimation in Intensity Modulated Fiber Optic Links Containing a Single Optical Pre-amplifier.
abstract: Exact signal statistics for fiber-optic links containing a single optical pre-amplifier are calculated and applied to sequence estimation for electronic dispersion compensation. The performance is evaluated and compared with results based on the approximate chi-square statistics. We show that detection in existing systems based on exact statistics can be improved relative to using a chi-square distribution for realistic filter shapes. In contrast, for high-spectral efficiency systems the difference between the two approaches diminishes, and performance tends to be less dependent on the exact shape of the filter used.
authors.forename: Nikola
authors.initials: N
authors.lastname: Alić
authors.forename: George
authors.initials: G
authors.lastname: Papen
authors.forename: Robert
authors.initials: R
authors.lastname: Saperstein
authors.forename: Laurence
authors.initials: L
authors.lastname: Milstein
authors.forename: Yeshaiahu
authors.initials: Y
authors.lastname: Fainman