基于控制分组收集的数据信道调度算法  

A Data Channel Scheduling Algorithm Based on Collection BHP

作　　者：王立[1] 伍宗富[1] 李建奇[1] 

机构地区：[1]湖南文理学院电气工程系,湖南常德415000

出　　处：《通信技术》2008年第3期79-81,共3页Communications Technology

摘　　要：在OBS网络中,核心节点的调度算法是影响网络交换性能的重要因素。如何有效地对数据突发(Data Burst)分组进行合理调度,提高信道利用率,减少丢包率是关键问题所在。在讨论了两种数据信道调度算法的基础上提出了一种BHP收集调度算法,该算法在一个收集周期内对到达的多个BHP所对应的突发数据进行集中调度,从而达到合理调度。仿真结果表明BHP收集调度算法比其他两种算法的突发丢失率性能都要好。In OBS Networks, the scheduling algorithm for core node is important for the performance of switching networks. And how to properly schedule the data burst packets, improve the channel utilization and decrease the loss possibility of the bursts have become the critical problems. This paper discusses the two date channel scheduling algorithms and proposes a new collection BHP scheduling algorithm. With this algorithm, data bursts of all BHPs collected in one collection period are scheduled collectively and properly. Simulation results show that the loss possibility of bursts for this algorithm is better than other ones.

关 键 词：光突发交换 数据信道调度算法 丢包率 

分 类 号：TN929.11[电子电信—通信与信息系统]