%0 Journal Article
%T Shared-Path Protection Algorithm with Differentiated Reliability in Meshed WDM Networks<br>网状WDM网中支持区分可靠性的共享通路保护算法
%A Yu GongFang
%A Wen HaiBo
%A Wang Sheng
%A Li LeMin
%A <br>虞红芳
%A 温海波
%A 王晟
%A 李乐民
%J 电子与信息学报
%D 2005
%I 
%X Fiber links, because of sharing some common physical resources (such as fiber cable, conduit, right of way, etc.), have certain failure-dependent. The term "Shared Risk Link Groups (SRLG)" is introduced to describe the relationship between links with shared risk; SRLG diversity has become the important constraint of protection design problem. This paper addresses SRLG-constraint-based shared-path protection design problem with differentiated reliability. Via SRLG conditional failure probability concept, an efficient PSD-SPP (Partial SRLG-Disjoint Shared-Path Protection) algorithm is proposed to solve the protection design problem with differentiated reliability when considering links failure-dependence. Simulation result shows this algorithm not only efficiently satisfies the user-specific requirement, but also effectively decreases the network-blocking ratio.
%K Meshed networks
%K Failure-dependent
%K Shared Risk Links Groups (SRLG)
%K Differentiated reliability
%K Conditional failure probability
%K Partial SRLG-disjoint<br>网状网
%K 故障相关性
%K 共享风险链路组
%K 区分可靠性
%K 条件故障概率
%K 部分SRLG分离
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=EFC0377B03BD8D0EF4BBB548AC5F739A&aid=8D8CEBCEB42E1F66&yid=2DD7160C83D0ACED&vid=DB817633AA4F79B9&iid=5D311CA918CA9A03&sid=73839ECFB80A3712&eid=61548B9F608D3CE3&journal_id=1009-5896&journal_name=电子与信息学报&referenced_num=2&reference_num=8