基于弹性光网络的优先共享通路保护技术  

Preferentially-Shared Path Protection based on Elastic Optical Network

作　　者：严学阳 杨笔锋[1,2] 

机构地区：[1]成都信息工程大学,四川成都610225 [2]中国气象局大气探测重点开放实验室,四川成都610225

出　　处：《通信技术》2017年第3期474-479,共6页Communications Technology

基　　金：国家重大科学仪器设备开发专项资助项目(2012YQ110205)~~

摘　　要：优先共享通路保护技术研究大多集中在WDM网络中,而弹性光网络与传统WDM光网络在资源分配等方面存在巨大差异,因此有些成果和方法不能直接应用于解决弹性光网络的保护问题,这就需要通过比较两种网络的差别,得出适应于弹性光网络的保护算法。利用C++仿真平台比较基于弹性光网络的优先共享通路保护和传统共享通路保护在资源利用率、阻塞率、保护开销以及平均跳数四个方面的性能,得出结论:相比于传统共享通路保护技术,优先共享通路保护阻塞率更低,资源利用率更高,保护开销更少,而平均跳数更多。The research on preferentially-shared path protection technology is mainly concentrated in the WDM network, while the elastic optical network and the traditional WDM optical network are quite different in resource allocation. For this reason, some results and methods couldn,t be directly applied to solving the protection of elastic optical network, it is thus necessary to compare the difference of between these two kinds of networks, and acquire the protection algorithm suitable for the elastic optical network. C＋＋ simulation platform is used to compare the preferentially-shared path protection based onelastic optical network and the routinely-shared path protection in resource utilization rate, blocking rate, protection cost and average hop count. Final conclusion is draw that compared to the routinely-shared path protection technology, the preferentially-shared path protection is lower in blocking rate and higher in, resource utilization rate, and at the same, lower in protection cost and more in average hop count.

关 键 词：弹性光网络 保护算法 C++仿真 优先共享通路保护 传统共享通路保护 

分 类 号：TN911.5[电子电信—通信与信息系统]