Contention avoidance using dual-fuzzy assembly threshold algorithm in optical burst switching networks
YANG Jiu-ru1,2, WANG Gang1, JIA Shi-lou1
1.Communication Research Center,Harbin Institute of Technology,Harbin 150001,China;2.School of Electronic Engineering,Heilongjiang University,Harbin 150080,China
Abstract:
To avoid burst contention efficiently,on the basis of feedback-based source flow-rate control(SFC) strategy,a novel fuzzy-control-based assembly algorithm,called dual-fuzzy assembly threshold(DFAT),is proposed in an optical burst switching network.In our algorithm,according to the variations of burst assembly period and the interarrival of burst control packet,the traffic states of edge-switching nodes and core-switching nodes are first obtained.Then,the assembly threshold of bursts is set dynamically in order to operate the source traffic management from the information of traffic states.The performance of DFAT algorithm on burst loss probability is evaluated,and simulation results show that,compared with conventional assembly algorithms,the proposed scheme can constrain the birth of burst contention efficiently,when being a heavy load state of network.
Key words: optical burst switching contention avoidance burst assembly dual feedback mechanism
DOI：10.11916/j.issn.1005-9113.2009.04.005
Clc Number:TN929.1
Fund:
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Contention avoidance using dual-fuzzy assembly threshold algorithm in optical burst switching networ
本站小编 哈尔滨工业大学/2019-10-23
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