Open AccessInter‐ONU Bandwidth Scheduling by Using Threshold Reporting and Adaptive Polling for QoS in EPONs
Author(s) -
Yang YeonMo,
Lee SangOok,
Jung HaeWon,
Kim Kiseon,
Ahn ByungHa
Publication year - 2005
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.05.0205.0028
Subject(s) - polling , computer network , computer science , quality of service , dynamic bandwidth allocation , network packet , bandwidth allocation , scheduling (production processes) , bandwidth (computing) , passive optical network , wavelength division multiplexing , engineering , wavelength , operations management , physics , optoelectronics
I dynamic bandwidth allocation (DBA) scheme, an inter–optical network unit (ONU) bandwidth scheduling, is presented to provide quality of service (QoS) to different classes of packets in Ethernet passive optical networks (EPONs). This scheme, referred to as TADBA, is based on efficient threshold reporting from, and adaptive polling order rearranging of, ONUs. It has been shown that the network resources are efficiently allocated among the three traffic classes by guaranteeing the requested QoS, adaptively rearranging the polling orders, and avoiding nearly all fragmentation losses. Simulation results using an OPNET network simulator show that TADBA performs well in comparison to the available allocation scheme for the given parameters, such as packet delay and channel utilization.