摘要
A novel prefigured-cycle(P-Cycle)algorithm was proposed to improve the protection success ratio for asymmetric traffic in mesh optical networks.The proposed algorithm was simulated in a Pan-European COST239 network environment under an asymmetric dynamic traffic model.The experimental results show that the proposed algorithm has lower capacity redundancy and higher utilization rate of configured resources than traditional P-Cycle methods.Network performance can be improved when implementing this algorithm under single-link failure circumstances.The system behavior is analyzed under different traffic volumes and the configuration strategy is also investigated for the heavyload and light-load networks respectively.
基金
supported by the Hi-Tech Research and Development Program of China (No.2006AA01Z246)
the National Natural Science Foundation of China (Grant No.60602004).
