Shared protection strategy for traffic grooming-supporting elastic optical networks

Jia Xiaolei; Shen Jianhua

doi:10.13756/j.gtxyj.2015.03.008

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Shared protection strategy for traffic grooming-supporting elastic optical networks

- Shared protection strategy for traffic grooming-supporting elastic optical networks
- Study on Optical communication Issue 3, Pages: 24-26(2015)
- 作者机构：
  
  南京邮电大学通信与信息工程学院
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2015.03.008
  CLC： TN929.1
- Published：2015，
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[1]贾晓蕾,沈建华.支持流量疏导弹性光网络的共享保护策略[J].光通信研究,2015(03):24-26+53.

Jia Xiaolei, Shen Jianhua. Shared protection strategy for traffic grooming-supporting elastic optical networks. [J]. (3):24-26(2015)
[1]贾晓蕾,沈建华.支持流量疏导弹性光网络的共享保护策略[J].光通信研究,2015(03):24-26+53. DOI： 10.13756/j.gtxyj.2015.03.008.

Jia Xiaolei, Shen Jianhua. Shared protection strategy for traffic grooming-supporting elastic optical networks. [J]. (3):24-26(2015) DOI： 10.13756/j.gtxyj.2015.03.008.

摘要

针对支持流量疏导的EON（弹性光网络）

提出了一种改进的共享保护策略。改进策略针对不同粒度级别（如光隧道级和低速子载波级）的路径进行分级的共享保护

以保证对网络中隧道级路径进行隧道级保护。仿真结果表明

文章所提保护算法比传统的共享保护算法在阻塞率及资源利用率方面都有明显改善

其中业务阻塞率最大降低了0.47;在保护带G为16个频隙的情况下

资源利用率可节约10.95%。

Abstract

This paper proposes an improved shared protection strategy for Traffic Grooming（TG）-supporting Elastic Optical Networks（EON）

which provide classified shared protection for paths with different levels of granularity

e.g.optical tunnel and low-rate subcarrier

so as to ensure protections for tunnel-level paths.Simulation results show that the proposed protection algorithm is significantly improved in terms of service blocking probability and resource utilization rate as compared with the traditional ones:the former is reduced by 0.47 and the latter improved by 10.95% when the protection band G =16frequency slots.

关键词

弹性光网络流量疏导共享保护资源利用率

Keywords

EONtraffic groomingshared protectionresource utilization rate

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