POBS网络中异步突发延迟插空调度算法  

A Delayed Insert Scheduling Algorithm for Asynchronous Burst in POBS

作　　者：黄胜[1] 李根[1] 庞洪丰[1] 李玲霞[1] 

机构地区：[1]重庆邮电大学重庆市光纤通信技术重点实验室,重庆400065

出　　处：《北京邮电大学学报》2013年第2期70-73,83,共5页Journal of Beijing University of Posts and Telecommunications

基　　金：国家重点基础研究发展计划项目(2012CB315803);国家自然科学基金项目(61071117;61171158;61275077);重庆市科委项目(2010BB2413;2010BB2409);重庆市教委项目(KJ110519;KJ110527)

摘　　要：为了对多态光突发交换(POBS)中异步突发进行合理调度,达到降低异步突发丢失的目的,提出一种异步突发延迟插空调度算法.利用POBS边缘节点同步同期业务的传输情况和新汇聚的异步突发重叠度值,将异步突发延迟调度到与之有相同目的地址的周期业务间隔中.仿真结果表明,本算法能很好地降低POBS网络中异步突发的丢失率.In order to schedule effectively the asynchronous burst in polymorphous optical burst switching （POBS） and reduce burst loss rate, an asynchronous burst delayed insert scheduling algorithm is pro- posed. Based on the transmission state of periodic traffic in the source ingress node of POBS network and the overlapping degree of the new assembled asynchronous burst, the proposed algorithm delays the burst to the gap of periodic traffic that has the same destination edge node of the burst. The simulation results show that the proposed algorithm can reduce the asynchronous burst loss rate of POBS.

关 键 词：多态光突发交换 周期业务 调度算法 

分 类 号：TN929.53[电子电信—通信与信息系统]