宽带光纤网中一种基于光开关的自愈策略  

A New Self healing Strategy Based on Optical Switch for Broad band Fiber Optic Network

作　　者：宋文东[1] 蔡建新[1] 孙金伦[1] 

机构地区：[1]南京邮电学院通信工程系

出　　处：《南京邮电学院学报》1998年第2期25-29,共5页Journal of Nanjing University of Posts and Telecommunications(Natural Science)

摘　　要：由于目前数字交叉连接设备（ＤＣＳ）结构和交叉连接技术的限制，传统的基于ＤＣＳ的自愈网（ＳＨＮ）技术不能达到２ｓ的业务恢复目标。提出了一种新的应用无源光开关的自愈网（ＳＨＮＯＳ）结构和恢复策略，业务恢复是在光范畴内利用光纤代替传统的数字通道来实现的，而控制部分由目前的电方式的ＤＣＳ系统完成。网络模拟表明，ＳＨＮＯＳ可以在２ｓ内完成网络自愈过程。Because of the limits of present Digital Cross connect Systems(DCS's)architecture and cross connect technology,the conventional Self Healing Network (SHN) technology can't achieve the 2 s service restoration objective.In this paper,we proposed a new SHN architecture and restoration strategy using optical switch (SHN OS).In stead of using conventional logical digital paths,SHN OS restored services using the fibers in the optical domain,and the restoration process is controlled by the present electronic DCS.Network case studies showed that SHN OS may restore services within 2 s.

关 键 词：光开关 生存性 光纤通信 DCS 

分 类 号：TN929.11[电子电信—通信与信息系统]