一种基于网络编码的光网络保护机制  

Optical network protection mechanism based on network coding

作　　者：刘佳庆[1] 

机构地区：[1]重庆邮电大学重庆高校光纤通信技术重点实验室,重庆南岸400065

出　　处：《重庆文理学院学报（自然科学版）》2010年第2期33-35,共3页Journal of Chongqing University of Arts and Sciences

基　　金：重庆市科委自然科学基金(CSTC2008BB2414);重庆市教委自然科学基金(KJ080513);重庆邮电大学自然科学基金(A2007-46)

摘　　要：采取共享保护的模式,改进一种新的基于单链路故障的1+N保护机制.此机制在核心节点处进行线性组合,在不通过故障监测和定位的情况下仍然能准确地恢复出由于链路故障丢失的数据.与传统的专有保护相比较,通过仿真实验表明,1+N保护方案可以减少波长资源消耗,能节省较多资源,仍然可用短时间进行故障恢复.1 ＋ N protection mechanism based on a single link failures is proposed in this paper, which takes shared protection model. This mechanism performs linear combination in the core nodes, and it can still accurately recover lost data due to link failures without fault monitoring and location. Compared with the tradi, tional protection, simulation experiments show that 1 ＋ N protection can reduce the wavelength resource consumption. With 1 ＋ N protection their resources are still available to conduct short -term recovery.

关 键 词：网络编码 光网络 单链路 1+N保护 

分 类 号：TN913.11[电子电信—通信与信息系统]