OBS-Ethernet自适应汇聚模块的设计与性能仿真  

Design and Performance Simulation of Self-tuning Assembly Module for OBS-Ethernet

作　　者：朱智俊[1] 乐孜纯[2] 付明磊[1] 

机构地区：[1]浙江工业大学信息工程学院,杭州310014 [2]浙江工业大学理学院,杭州310014

出　　处：《系统仿真学报》2010年第2期478-482,共5页Journal of System Simulation

基　　金：浙江省自然科学基金(Y1080172)

摘　　要：设计了一个用于光突发交换网络边缘节点中的汇聚模块(OBS-Ethernet自适应汇聚模块)。OBS-Ethernet自适应汇聚模块引入了流量检测队列,并通过该队列的检测结果选择合适的时间汇聚门限。同时,OBS-Ethernet自适应汇聚模块还通过BDP包长的反馈信息来修正控制曲线。仿真结果表示:与MBMAP汇聚模块相比,OBS-Ethernet自适应汇聚模块在网络数据突发性较强的情况下,具有更小的平均汇聚时延。并且与前者采用两个固定的汇聚门限不同,OBS-Ethernet自适应汇聚模块的时间汇聚门限能够随着网络流量的变化而自适应地调整。An assembly module entitled OBS-Ethernet self-tuning assembly module was designed for the edge node in optical burst switching networks. The traffic detection queue was introduced in the designed module by whose output was used to choose the suitable assembly time threshold. Moreover, the control curve was also adjusted by the feedback of the BDP length. Simulation results show that the OBS-Ethernet self-tuning assembly module has less average assembly delay if the traffic bursty is strong when compared with MBMAP assembly module. In addition, the assembly time threshold in the OBS-Ethernet self-tuning assembly module can be adjusted according to the network traffic, which is different from MBMAP assembly module whose assembly thresholds are static.

关 键 词：汇聚算法 光突发交换 边缘节点 MBMAP 自适应控制 

分 类 号：TN391[电子电信—物理电子学]