DWDM光分组交换节点中的预留信道路由控制算法  

A Channel-Reserved Routing Control Algorithm for Decreasing PLR of High-Priority Data in a DWDM Optical Packet Switching Node

作　　者：王春华[1] 贾潞华[1] 黄肇明[1] 

机构地区：[1]上海大学通信与信息工程学院,上海200072

出　　处：《上海大学学报（自然科学版）》2001年第2期100-104,共5页Journal of Shanghai University:Natural Science Edition

摘　　要：建立了业务具有高、低两种优先权要求时 DWDM光分组交换节点预留信道路由模式的解析模型 .推导了在几种不同的竞争原则下的高、低优先级数据的丢包率 .分析了高、低优先级数据的丢包率与输出光缓冲器之间的关系 .结果表明 ,对高、低优先级数据进行分离波长信道路由 ,并动态设定预留信道数 ,可获得任意要求的高优先级数据丢包率的改善 .A wavelength channel-reserved routing analytical model for high and low priority traffics of DWDM optical packet switching node is set up. The relationships of the PLR performance of both high and low priority data vs. the depth of optical output buffer are evaluated and discussed under different contention rules. It is concluded that under the contention algorithm of H-P and L-P data routed separately through different wavelength channels, the PLR of H-P data can be improved as demanded by adjusting the number of reserved channels.

关 键 词：波长分配 密集波分复用 光分组交换节点 预留信道路由控制算法 丢包率 全光网 DWDM传输 

分 类 号：TN929.1[电子电信—通信与信息系统]