波带交换光网络中的保护机制  

Protection Schemes in Waveband Switching Optical Network

作　　者：丁焰[1] 张沛[1] 顾畹仪[1] 

机构地区：[1]北京邮电大学光通信中心,北京100876

出　　处：《现代有线传输》2005年第5期69-72,共4页

摘　　要：本论文主要对波带交换光网络中的保护机制进行了一定的研究,提出了基于波带通道的专用保护和共享保护机制和算法,其中在共享保护算法中考虑不同的策略提出了三种不同的算法,即只共享逐跳的保护波长通道的WSP算法,只共享嵌入到波带通道中的保护波长通道的BSP算法和能同时共享两者的BWSP算法。最后进行了相应的网络仿真,讨论并得出BWSP算法的性能是最优的。In this paper, we thetis on the protection scbemes in waveband switching optical network, and propose two kinds of waveband- path-based protection schemes, which are dedicated protection （DP） scheme and share protection （SP） scheme. Furthermore in SP scheme, three algorithms with different forms of sharing wavelength protection subpaths are proposed. They are WSP algorithm in which only step-by-step wavelength prolection subpaths are shared. BSP algorithm in which only wavelength protection subpaths tunneled in waveband path are shared and BWSP algorithm in which both kinds of wavelength protection subpaths are shared. Here “subpath” refers to a portion of an end-to-end wavelength path. Algorithms above are evaluated and results show that the capability of BWSF algorithm is the best.

关 键 词：多粒度交换 波带交换光网络 专用保护机制 共享保护机制 保护机制 波带交换 光网络 保护算法 波长通道 网络仿真 共享 WSP BSP 

分 类 号：TN929.1[电子电信—通信与信息系统]