A new composite assembly mechanism for supporting QoS in OBS networks  

作　　者：管爱红 胡芳 李万崇 

机构地区：[1]College of Information Science and Engineering,Henan University of Technology [2]Zhengzhou J&R Engineering Control Tech Co.,Ltd

出　　处：《Optoelectronics Letters》2014年第1期55-58,共4页光电子快报（英文版）

基　　金：the Natural Science Research Foundation of Education Department of Henan Province(No.13A510163)

摘　　要：To provide the differential quality of service(QoS)for different classes of packets and reduce the packet loss probabil ity(PLP),a novel priority-based composite assembly scheme for optical burst switching(OBS)networks is proposed The low and high packet classes are aggregated into a single burst simultaneously,and the highest-priority packets ar placed in the middle,while the low-priority packets are at the tail and head of the burst.The priority is lowered gradu ally from the middle to the ends.Simulation results demonstrate that the proposed assembly strategy not only guaran tees the integrity of the high-priority bursts,but also significantly reduces the average end-to-end delay of the burst and the PLP of network.So it can adapt to the flexible network with QoS requirement.To provide the differential quality of service（QoS）for different classes of packets and reduce the packet loss probabil ity（PLP）,a novel priority-based composite assembly scheme for optical burst switching（OBS）networks is proposed The low and high packet classes are aggregated into a single burst simultaneously,and the highest-priority packets ar placed in the middle,while the low-priority packets are at the tail and head of the burst.The priority is lowered gradu ally from the middle to the ends.Simulation results demonstrate that the proposed assembly strategy not only guaran tees the integrity of the high-priority bursts,but also significantly reduces the average end-to-end delay of the burst and the PLP of network.So it can adapt to the flexible network with QoS requirement.

关 键 词：QOS支持 OBS 网络 组装 复合 机制 服务质量 优先级 

分 类 号：TP393.09[自动化与计算机技术—计算机应用技术]