波长动态调度TWDM光接入网中的生存性保证

doi:10.11959/j.issn.1000-0801.2015220

摘要/Abstract

摘要：

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。

关键词: 光接入网, 生存性, 成本, 时分波分复用

Abstract:

It is a key technical problem to locate failure correctly and perform protection switching for strong survivability in time and wavelength division multiplexing（TWDM）optical access network with dynamic wavelength scheduling. To solve the above problem, a cost-effective survivability protection scheme using control channel for fault location 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.

Key words: optical access network, survivability, cost, time and wavelength division multiplexing

胡新天,张治国,陈雪. 波长动态调度TWDM光接入网中的生存性保证[J]. 电信科学, 2015, 31(9): 156-162.

Xintian Hu,Zhiguo Zhang,Xue Chen. Survivability Protection in TWDM Optical Access Network with Dynamic Wavelength Scheduling[J]. Telecommunications Science, 2015, 31(9): 156-162.

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方案名称		相对生存性			相对成本
方案名称	m=1	m=2	m=10	亚洲		欧洲
无保护	100%	100%	100%	100%		100%
所提方案	107%	114%	154%	104%		101%
环型树主干光纤保护方案	110%	120%	201%	110%		119%

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