title: Congestion estimation technique in the optical network unit registration process.
abstract: We present a congestion estimation technique (CET) to estimate the optical network unit (ONU) registration success ratio for the ONU registration process in passive optical networks. An optical line terminal (OLT) estimates the number of collided ONUs via the proposed scheme during the serial number state. The OLT can obtain congestion level among ONUs to be registered such that this information may be exploited to change the size of a quiet window to decrease the collision probability. We verified the efficiency of the proposed method through simulation and experimental results.
authors.forename: Geunyong
authors.initials: G
authors.lastname: Kim
authors.forename: Hark
authors.initials: H
authors.lastname: Yoo
authors.forename: Dongsoo
authors.initials: D
authors.lastname: Lee
authors.forename: Youngsun
authors.initials: Y
authors.lastname: Kim
authors.forename: Hyuk
authors.initials: H
authors.lastname: Lim