Efficiency-Score Based Intelligent P-cycle Protection of Multicast Sessions in WDM Networks

LIU Fei; CHU Bin-bin; SHEN Jian-hua

doi:10.13756/j.gtxyj.2016.02.007

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Efficiency-Score Based Intelligent P-cycle Protection of Multicast Sessions in WDM Networks

更新时间：2022-06-28

- Efficiency-Score Based Intelligent P-cycle Protection of Multicast Sessions in WDM Networks
- Study on Optical communication Issue 2, Pages: 22-23(2016)
- 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.2016.02.007
  CLC： TN929.1
- Published：2016，
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[1]刘非,褚兵兵,沈建华.基于智能P圈的多播业务光保护方案[J].光通信研究,2016(02):22-23+36.

LIU Fei, CHU Bin-bin, SHEN Jian-hua. Efficiency-Score Based Intelligent P-cycle Protection of Multicast Sessions in WDM Networks. [J]. Study on Optical communication (2):22-23(2016)
[1]刘非,褚兵兵,沈建华.基于智能P圈的多播业务光保护方案[J].光通信研究,2016(02):22-23+36. DOI： 10.13756/j.gtxyj.2016.02.007.

LIU Fei, CHU Bin-bin, SHEN Jian-hua. Efficiency-Score Based Intelligent P-cycle Protection of Multicast Sessions in WDM Networks. [J]. Study on Optical communication (2):22-23(2016) DOI： 10.13756/j.gtxyj.2016.02.007.

摘要

生存性是WDM（波分复用）光网络的核心技术之一

对多播业务而言

IpC（智能P圈保护）是一种具有快速、高效等特点的保护算法。文章提出一种EIpC（增强型智能P圈）保护方案

包括分段和路径IpC算法

分段和路径IpC算法分别为每个分段和路径寻找新的P圈。理论分析和仿真结果表明

路径IpC在资源利用率、P圈构造个数以及圈平均覆盖度等方面最优

分段IpC次之

传统（链路）IpC最低。在先验效率方面

链路IpC最优

分段IpC次之

路径IpC最低。

Abstract

Survivability is one of the most important promising technologies in Wavelength Division Multiplexing（WDM）networks.The P-cycle based dynamic multicast protection scheme（IpC）is widely accepted as a good solution due to its fast restoration time and high capacity efficiency.This paper presents an improved IpC mechanism named EIpC including both the segment IpC and the path IpC algorithm simultaneously.The main feature of EIpC is to use segment IpC algorithm to find a new P-cycle for a segment and path IpC algorithm to find a new P-cycle for a path

respectively.Theoretical analysis and simulation results show that the path IpC has better performance in resource utilization

the number of P-cycle（s）and the P-cycle’s average coverage

than the segment IpC and the classical（link）IpC.However

the link IpC has a higher average AE than the segment IpC and the path IpC.

关键词

波分复用生存性多播P圈

Keywords

WDMsurvivabilityMulticastP-cycle

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