%0 Journal Article
%T A Deflection Routing Mechanism Based on Priority and Burst Segmentation in Optical Burst Switching Networks<br>OBS网络中基于优先级与突发包分割的偏射路由机制
%A GUAN Ai-hong
%A WANG Bo-yun
%A FU Hong-liang
%A XU Yin
%A ZHANG Hai-fang
%A <br>管爱红
%A 王波云
%A 傅洪亮
%A 徐寅
%A 张海芳
%J 光子学报
%D 2012
%I 
%X To effectively reduce the packet loss probability (PLP) and guarantee quality of service (QoS) of different priority bursts, a deflection routing mechanism is proposed based on priority and burst segmentation in optical burst switching networks. In the core node, contention is resolved through incorporating prioritized burst segmentation with deflection routing scheme. The burst segmentation scheme allows the head of contending bursts or the tail of original bursts to be segmented. The segmented burst is scheduled on the optimum deflection path by the parameter-tunable deflection routing scheme. An analytical model is proposed to evaluate the contention resolution scheme through calculating PLP and the normalized end-to-end delay. Results show that high-priority bursts have significantly lower PLP and the delay than low-priority. So the deflection routing mechanism based on priority and burst segmentation can effectively resolve the issue of the burst contention, and improve the performance of OBS networks.
%K Optical communications
%K Optical Burst Switching (OBS)
%K Contention resolution
%K Burst segmentation
%K Deflection routing
%K Quality of Service (QoS)<br>光通信
%K 光突发交换
%K 冲突解决
%K 突发包分割
%K 偏射路由
%K 服务质量
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=1D36885FD7A8294B7EB79BCB04648660&yid=99E9153A83D4CB11&vid=2001E0D53B7B80EC&iid=0B39A22176CE99FB&sid=B344543C2864D684&eid=7C72DBC13F2D71EC&journal_id=1004-4213&journal_name=光子学报&referenced_num=0&reference_num=12