波带交换光网络中的保护机制

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。

Protection Schemes in Waveband Switching Optical Network

In this paper, we focus on the protection schemes 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 protection 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 BWSP algorithm is the best.