光突发交换中交换矩阵配置时间的影响研究  

Impact of configurating time for optical switching matrix on performance of optical burst switching networks

作　　者：于金辉[1] 杨毅军[1] 范戈[1] 

机构地区：[1]上海交通大学区域光纤通信网和新型光通信系统国家重点实验室,上海200030

出　　处：《光学技术》2003年第6期707-709,712,共4页Optical Technique

摘　　要：光突发交换是近几年出现的一种很有前途的交换技术。在光突发交换网络的核心节点中,光交换矩阵是一个关键部件,其配置时间影响到光突发交换网络的性能。这种影响表现在对数据信道可用时间施加了限制。在考虑光交换矩阵配置时间的基础上给出了修正后的LAUC算法,并通过计算机仿真研究了这种配置时间对光突发交换性能的影响。结果表明,光交换矩阵配置时间的增大会导致输出数据信道利用率的降低,进而增大了数据丢失率。Optical burst switching(OBS) is a new promising optical switching technology. In the core node of the OBS network, optical switching matrix is a key component, whose configurating time affects on performance of the network by limiting available duration of data channels. In the basis to consider the configurating time, the modified LAUC algorithm is proposed. In addition, impact of the configurating time on performance of the OBS network is studied by computer simulation. The results show that the configurating time for switching matrix will induce more serious data loss.

关 键 词：光突发交换 光交换矩阵 LAUC算法 配置时间 

分 类 号：TN929.1[电子电信—通信与信息系统]