摘要
在波长路由光网优化设计的过程中考虑了物理传输损伤造成的限制 ,提出了一种联合优化思路 .将光信号在传输过程中的物理损伤作为问题公式的另一维约束 ,给出了相应的启发式算法 ,并按照由粗到细的机制对所提出的思路做了相应的评估 ,同时对负荷平衡问题作了初步的分析 .数值结果表明这种算法可以获得与优化值相近的波长需求解 ,并且能够保证网络的传输性能 ,其业务分布随着备选路径的增加而趋向均衡 .
An integrated approach which combines traditional routing and wavelength assignment problem with physical transmission impairments is proposed for the optimal design of wavelength-routed optical networks. A heuristic algorithm is developed to evaluate the approach in a coarse-to-fine manner, and the load balancing problem is also studied. Numerical results show that the proposed approach can guarantee transmission performance, meanwhile the wavelength requirement is close to the optimal result, and the traffic load tends to be evenly distributed with more alternate paths.
出处
《光子学报》
EI
CAS
CSCD
北大核心
2003年第1期35-39,共5页
Acta Photonica Sinica
基金
SupportedbyNationalNaturalScienceFoundationofChina(6 9990 5 40 )
