| 光传送网中结合传输损伤的路由和波长分配 |
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| 引用本文： | 杨旭东,曾庆济,朱栩,肖石林.光传送网中结合传输损伤的路由和波长分配[J].光子学报,2003,32(1):35-39. |
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| 作者姓名： | 杨旭东 曾庆济 朱栩 肖石林 |
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| 作者单位： | 上海交通大学宽带光网技术中心,上海,200030 |
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| 基金项目： | SupportedbyNationalNaturalScienceFoundationofChina(6 9990 5 40 ) |
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| 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.
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| 关 键 词： | 路由和波长分配 启发式算法 波分复用 传输损伤 |
| 收稿时间： | 2002-03-18 |
Combined Routing and Wavelength Assignment with Transmission Impairments in Optical Transport Networks |
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| Abstract.Combined Routing and Wavelength Assignment with Transmission Impairments in Optical Transport Networks[J].Acta Photonica Sinica,2003,32(1):35-39. |
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| Authors: | Abstract |
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| Institution: | R &; D Center of Broadband Optical Networking Technology, Shanghai Jiaotong University, Shanghai 200030 |
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| Abstract: | 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. |
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| Keywords: | Routing and wavelength assignment Heuristic algorithm Transmission impairments |
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