OBS网络中一种基于优先级的偏射路由机制  

A deflection routing mechanism based on priority in OBS networks

作　　者：王波云[1] 管爱红[1] 

机构地区：[1]河南工业大学信息科学与工程学院,郑州450001

出　　处：《光通信技术》2011年第1期47-50,共4页Optical Communication Technology

基　　金：河南省教育厅自然科学研究计划项目(2010A510002)资助

摘　　要：提出了一种基于优先级的偏射路由机制,该机制通过分割偏射优先级低的突发包来保证高优先级突发包的QoS。仿真结果表明,高优先级突发包的丢失率比低优先级的要低,并且突发包的丢失率随数据信道数目的增加而降低。该机制不仅能够有效地降低突发包的丢失率,而且能够为高优先级突发包提供很好的QoS保障。A deflection routing mechanism based on priority in optical burst switching networks is proposed in this paper.In order to protect QoS of high priority bursts,low priority bursts are divided and deflected.Simulations show that the packet loss probability of the higher-prioritized bursts are much less than those of the lower-prioritized bursts,and the packet loss probability will decrease with the increase of the number of data channel.So this scheme can not only efficiently reduce packet loss probability,but also provide the good guarantee of QoS for the higher-prioritized bursts and information.

关 键 词：光突发交换 偏射路由 冲突解决 优先级 

分 类 号：TN929.11[电子电信—通信与信息系统]