Title :
Full-Service MAC Protocol for Metro-Reach GPONs
Author :
Chang, Ching-Hung ; Alvarez, Noemí M. ; Kourtessis, Pandelis ; Lorenzo, Rubén M. ; Senior, John M.
Author_Institution :
Opt. Networks Group, Univ. of Hertfordshire, Hatfield, UK
fDate :
4/1/2010 12:00:00 AM
Abstract :
An advanced medium access control protocol is presented demonstrating dynamic bandwidth allocation for long-reach gigabit-capable passive optical networks (GPONs). The protocol enables the optical line terminal to overlap the idle time slots in each packet transmission cycle with a virtual polling cycle to increase the effective transmission bandwidth. Contrasting the new scheme with developed algorithms, network modeling has exhibited significant improvement in channel throughput, mean packet delay, and packet loss rate in the presence of class-of-service and service-level differentiation. In particular, the displayed 34% increase in the overall channel throughput and 30 times reduction in mean packet delay for service-level 1 and service-level 2 optical network units (ONUs) at accustomed 50% ONU load constitutes the highest extended-reach GPON performance reported up to date.
Keywords :
access protocols; bandwidth allocation; data communication; optical fibre networks; passive networks; channel throughput; class-of-service differentiation; dynamic bandwidth allocation; effective transmission bandwidth; full-service MAC protocol; long-reach gigabit-capable passive optical networks; mean packet delay; medium access control protocol; metro-reach GPON; optical line terminal; optical network units; packet loss rate; packet transmission cycle; service-level differentiation; virtual polling cycle; Class of service (CoS); dynamic bandwidth allocation (DBA); fiber-to-the-home (FTTH); gigabit-capable passive optical network (GPON); long-reach passive optical network (long-reach PON); quality of service (QoS); service level agreement (SLA);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2009.2037342
