激光技术Issue(4)：504-508,5.DOI:10.7510/jgjs.issn.1001-3806.2014.04.014
OBS基于回退和信道分级的冲突解决算法
Conflict resolution algorithm based on channel grading and back-off channel mechanism in OBS networks
摘要
Abstract
One of the most challenges in optical burst switching ( OBS) networks is the resolution of burst conflict .In order to decrease the packet loss probability when bust conflict , a novel conflict resolution algorithm was proposed based on channel grading and back-off channel mechanism .The algorithm takes the priority of the unexpected business into account . The channels were divided into two levels of high and low priority to be treated differently .And then, the back-off channels were increased for the protection and the retransmission of conflict packet to guarantee the transmission reliability of high priority.The results show that, when conflicts occur, the network could adjust the number of two levels adaptively according to the proportion of the priority traffic .Taking into account the low packet loss rate of the low priority , small time delay rate is guaranteed .The algorithm can reduce the packet loss rate and the time delay in OBS networks effectively compared with the other conflict resolution algorithms .关键词
光通信/光突发交换/冲突解决/信道分级/回退信道Key words
optical communication/optical burst switching/conflict resolution/channel grading/back-off channel分类
信息技术与安全科学引用本文复制引用
李敏涛,陈荷荷,章晓春..OBS基于回退和信道分级的冲突解决算法[J].激光技术,2014,(4):504-508,5.基金项目
浙江省教育厅科研资助项目 （）
