A link-selection-based p-cycle protection algorithm in OTN mesh networks

Zeng Ying; Qiu Yinghui; Fan Bing; Liu Chaoyang

doi:10.13756/j.gtxyj.2014.01.010

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A link-selection-based p-cycle protection algorithm in OTN mesh networks

- A link-selection-based p-cycle protection algorithm in OTN mesh networks
- Study on Optical communication Issue 1, Pages: 25-27(2014)
- 作者机构：
  
  1. 广东电网公司电力调度控制中心
  2. 华北电力大学电气与电子工程学院
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2014.01.010
  CLC： TN929.1
- Published：2014，
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[1]曾瑛,仇英辉,樊冰,刘朝洋.OTN网状网中一种基于链路选择的p圈算法[J].光通信研究,2014(01):25-27.

Zeng Ying, Qiu Yinghui, Fan Bing, et al. A link-selection-based p-cycle protection algorithm in OTN mesh networks. [J]. (1):25-27(2014)
[1]曾瑛,仇英辉,樊冰,刘朝洋.OTN网状网中一种基于链路选择的p圈算法[J].光通信研究,2014(01):25-27. DOI： 10.13756/j.gtxyj.2014.01.010.

Zeng Ying, Qiu Yinghui, Fan Bing, et al. A link-selection-based p-cycle protection algorithm in OTN mesh networks. [J]. (1):25-27(2014) DOI： 10.13756/j.gtxyj.2014.01.010.

摘要

在新型OTN（光传送网）中

传统的p圈算法在保护效率和资源利用率上有明显的不足

文章针对这一缺点

提出了一种新的改进算法。该算法针对链路双向工作量的差别

通过优先选择跨接链路来提高资源利用率

还能在资源有限的情况下提高保护效率。在泛欧COST239网络上进行了仿真

仿真结果表明:该算法在资源利用率上有明显的提高

在保护效率上也优于传统的p圈算法。

Abstract

In view of the obvious deficiencies of the traditional pre-configured cycle（p-cycle）protection algorithm for the new Optical Transport Network（OTN）in protection efficiency and resource utilization

this paper presents an improved algorithm. As there are different workloads in two ways of links

this algorithm improves the resource utilization rate by prioritizing the selection of jumping links and increases protection efficiency in the case of limited resources.Simulation results in pan-European COST239network show that this new algorithm significantly increases the resource utilization and is superior to the traditional p-cycle protection algorithm in protection efficiency.

关键词

光传送网生存性P圈相差比值容量效率

Keywords

OTNsurvivabilityP-cycledifference ratiovolumetric efficiency

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School of Communications and Information Engineering,NJUPT

College of Optoelectronic Engineering,Nanjing University of Posts and Telecommunications

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