一种新型的突发汇聚算法研究  

A Novel Burst Assemble Algorithm for OBS networks

作　　者：宁帆[1] 马川[1] 高泽华[2,3] 赵荣华[3] 

机构地区：[1]北京邮电大学网络教育学院,北京100876 [2]北京邮电大学信息与通信工程学院,北京100876 [3]北京邮电大学光通信与光波技术教育部重点实验室,北京100876

出　　处：《光子学报》2009年第10期2563-2567,共5页Acta Photonica Sinica

基　　金：国家自然科学基金(60602005)资助

摘　　要：分析了现有的突发汇聚算法,同时针对现有汇聚算法的一些特点,提出了一种新型突发包汇聚算法,可以实现在不同网络负载的情况下,根据到达边缘节点的速率同时结合网络的性能(丢包率),动态的调整突发包汇聚的门限值,从而实现了智能组包,克服了原有算法简单,不灵活的缺点.通过仿真结果可以得知,该算法可以明显改善光突发交换网络的丢包率和时延性能,能够很好地支持实时性要求很高的数据业务.A novel assemble algorithm was proposed for Optical burst switching networks. Burst assembling was a very important technique in OBS. Burst assemble algorithms was introduced and then a new assemble algorithm based on the traits of the current algorithms was proposed. The algorithm was discussed and the feasibility by formulation was proved. The algorithm dynamically changes the assemble threshold based on the arrival rate of data and the performance of the network. From the result of the formulation. It can be found that the algorithm can obviously improve the performance of loss rate and the delay for the OBS networks and hold real-time data service.

关 键 词：光通信 光突发交换 汇聚算法 自适应 

分 类 号：TN929.11[电子电信—通信与信息系统]