An approach for enhancing fixed alternate routing in dynamic wavelength-routed WDM networks
An approach for enhancing fixed alternate routing in dynamic wavelength-routed WDM networks
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DOI：
10.1109/glocom.2002.1189138
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发表时间：
2002-11
期刊：
影响因子：
--
通讯作者：
P. Ho;H. Mouftah
中科院分区：
文献类型：
--
作者：
P. Ho;H. Mouftah
提出了一种新的规划算法，即容量平衡备用路由（C-BAR），用于增强动态波长路由WDM网络中的固定备用路由。C-BAR在网络规划阶段根据源-目的（S-D）对的负载分布和位置定义源-目的（S-D）对之间的备用路径，使光路的路由选择能够充分利用备用路径的负载均衡特性。一种方法，用于设计之间的S-D对实现特定的性能要求的备用路径的数量进行了演示。仿真结果表明，与已有的RWA算法相比，C-BAR算法在阻塞概率方面有明显的改善。
A novel planning algorithm, namely capacity-balanced alternate routing (C-BAR), is proposed for enhancing fixed alternate routing in dynamic wavelength-routed WDM networks. With C-BAR, alternate paths between each source-destination (S-D) pair are defined at the network planning stage according to the load distribution and the location of each S-D pair, so that the routing of lightpaths can take the most advantages of the load-balancing characteristic of the alternate paths. A methodology for designing the number of alternate paths between an S-D pair for achieving a specific performance requirement is demonstrated. Simulation is conducted to examine the proposed approaches, and show that the C-BAR algorithm can significantly improve the performance in blocking probability compared with the other reported RWA schemes.