DWDM光分组交换节点中的波长信道分离和缓冲器分段路由

上海大学学报(自然科学版)

DWDM光分组交换节点中的波长信道分离和缓冲器分段路由

王春华，王国栋，李力，黄肇明

上海大学通信与信息工程学院，上海市特种光纤重点实验室，上海 200072

收稿日期:2007-01-29 修回日期:1900-01-01 出版日期:2007-08-20 发布日期:2007-08-20
通讯作者: 王春华

Wavelength-Separation and Buffer-Sharing Routing in DWDM Optical Packet Switching Nodes

WANG Chun-hua, WANG Guo-dong, LI Li, HUANG Zhao-ming

Shanghai Key Lab of Specialty Fiber Optics, School of Communication and Information Engineering, Shanghai University, Shanghai 200072, China

Received:2007-01-29 Revised:1900-01-01 Online:2007-08-20 Published:2007-08-20
Contact: WANG Chun-hua

摘要/Abstract

摘要： 提出了业务有高、低两种优先权要求时，DWDM光分组交换节点波长信道动态分离路由的方法，建立了波长信道分离和缓冲器分段存储两种方法的解析模型.两种方法的优化结果表明，当节点具有全波长转换且缓冲器深度较小时，相比于缓冲器分段法，信道分离法的高优数据丢包率（PLR）有较好的改善.

关键词: 波长变换
, 光分组交换, 密集波分复用（DWDM）, 输出缓冲器

Abstract: We propose a new routing method called wavelength-separating method in DWDM optical packet switching nodes for two-class priority traffics. Analytical models of the method and a buffer-sharing method with special contention control are derived. The optimized results of the two methods show that the wavelength-separating method achieves a better improvement of the packet loss rate (PLR) than the buffer-sharing method in the case of full wavelength conversion and small output buffer length.

Key words: optical packet switching, output buffer, wavelength conversion
, DWDM

中图分类号:

TN929.11

王春华;王国栋;李力;黄肇明. DWDM光分组交换节点中的波长信道分离和缓冲器分段路由[J]. 上海大学学报(自然科学版).

WANG Chun-hua;WANG Guo-dong;LI Li;HUANG Zhao-ming. Wavelength-Separation and Buffer-Sharing Routing in DWDM Optical Packet Switching Nodes
[J]. Journal of Shanghai University（Natural Science Edition）.

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