SUN Hai-jin, ZHU Na, ZHOU Nai-fu. Distributed routing and wavelength assignment based on ant colony system[J]. 2005,(2):30-34. DOI: 10.13756/j.gtxyj.2005.02.010.
基于蚁群系统的分布式RWA算法研究
摘要
针对波分复用(WDM)光网络中动态选路和波长分配(RWA)问题
提出了一种基于蚁群算法的分布式动态RWA方法。将蚁群算法与分层图模型结合
实现了RWA的并行计算。仿真结果表明
与现有最短路径法相比
该算法能有效地降低光路阻塞率
促进波长资源的合理分配
同时分布式的计算方式也降低了现代频繁变化的大型光网络的通信开销。
Abstract
In this paper
the distributed method of dynamic routing and wavelength assignment (RWA) based on ant colony algorithm is brought forward in wavelength-division multiplexed optical networks. The routing choice and wavelength assignment are implemented at one time combining with layer model. Simulation result indicates that
compared with shortest algorithms
the ACO algorithm can achieve lower blocking rates and rational assignment of wavelength resource
and decrease the communication overhead of current large networks which vary frequently.