波长动态调度TWDM光接入网中的生存性保证  

Survivability Protection in TWDM Optical Access Network with Dynamic Wavelength Scheduling

作　　者：胡新天 张治国[2] 陈雪[2] 

机构地区：[1]中国移动通信有限公司研究院,北京100053 [2]北京邮电大学,北京100876

出　　处：《电信科学》2015年第9期156-162,共7页Telecommunications Science

基　　金：国家高技术研究发展计划("863"计划)基金资助项目(No.2011AA01A104)~~

摘　　要：如何在波长动态调度的时分波分复用光接入网中正确定位故障并进行保护倒换,以保证强生存性是需要解决的关键技术问题。为解决上述问题,提出了一种具有成本效益的利用控制信道定位故障的和基于动态波长调度的生存性保证方案,并对方案进行了生存性和成本的综合定量分析。分析计算表明,所提方案最优时只需付出1%的生存性保证成本,就能带来54%的生存性提高,并且保护倒换能控制在50 ms内完成。It is a key technical problem to locate failure correctly and perform protection switching for strong survivability in time and wavelength division multiplexing scheduling. To solve the above problem, a cost-effective （TWDM） optical access network with dynamic wavelength survivability protection scheme using control channel for fault tocation and based on dynamic wavelength scheduling was presented. For the scheme, the quantitative comprehensive analysis of survivability and cost was carried on. Analysis and calculations show that at the best the proposed scheme can pay only 1% of the cost for survivability protection and bring in 54% improvement in survivability. The proposed scheme can finish protection switching within 50 ms.

关 键 词：光接入网 生存性 成本 时分波分复用 

分 类 号：TN929.11[电子电信—通信与信息系统]