关键词: P圈保护, 波分复用, 路由和波长分配, 光网络, 网络生存性

Abstract:

The P-cycles algorithms in the WDM mesh optical networks was investigated. In order to utilize the free resource adequately and improve the network performance in the WDM network, two evaluation parameters for P-cycles were introduced, and different P-cycles generation algorithms were proposed in terms of three aspects that are elementary cycle-set generation, expansion strategies and expansion times. At last simulation and analysis with these different algorithms will be presented. The simulation results show that the new P-cycles algorithms could be used in the different conditions and the network performance could be improved significantly when implmenting these algorithms.

Key words: P-cycles, wavelength division multiplexing, routing and wavelength assignment, optical network, network survivability