Journal of Beijing University of Posts and Telecommunications

  • EI核心期刊

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2008, Vol. 31 ›› Issue (1): 1-4.doi: 10.13190/jbupt.200801.1.lib

• Papers •     Next Articles

A Novel P-Cycle Protection Strategy for Asymmetric Traffics in Mesh Optical Networks

LI Bin, ZANG Yun-hua, DENG Yu, HUANG Shan-guo, GU Wan-yi   

  1. Key Laboratory of Optical Communication and Lightwave Technologies, Ministry of Education,
    Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2007-11-21 Revised:1900-01-01 Online:2008-02-28 Published:2008-02-28
  • Contact: LI Bin

Abstract:

A new p-cycle algorithm was proposed to improve the protection success ratio for asymmetric traffics in mesh optical networks. The proposed algorithm was simulated in Pan-European COST239 network environment under asymmetric dynamic traffic model. The experiment shows that the proposed algorithm has lower capacity redundancy and higher utilization rate of configured resources than that of traditional p-cycle methods. The network performance can be significantly improved when this algorithm is implemented under single-link failure circumstances. The system behavior is analyzed under different traffic volumes, and the configuration strategy is also investigated for the heavy-load and light-loads network respectively.

Key words: mesh optical network, p-cycle, survivability, protection

CLC Number: