An Improved Ant Colony Based Algorithm for Dynamic Routing and Wavelength Assignment Scheme in Optical Networks

摘要：

　　Dynamic routing and wavelength assignment (RWA)is a key problem in intelligent optical networks.This paper presents an improved ant colony algorithm to solve the RWA problem which introduced link idle as constraint into the ant transition probability.At the same time,the random disturbance is added to prevent premature convergence into local optimal path.Simulation shows that the modified algorithm decreases the blocking probability and increases the resources utilization comparing with the traditional Dijkstra+FF algorithm,respectively.

关键词： Intelligent Optical Network Routing and Wavelength Assignment Ant Colony Algorithm Blocking Probability Resource Utilization

作者: Jianhua Shen Xi Cheng

作者单位: College of Communication and Information Engineering Nanjing University of Posts &Telecommunications Nanjing,China,210003

会议类型: 国际会议

会议名称: 2012 2nd International Conference on Computer Application and System Modeling(2012第二届计算机应用与系统建模国际会议)(ICCASM-2012)

会议地点: 沈阳

会议语种:英文

页码: 69-71

在线出版日期: 2012-07-27（万方平台首次上网日期，不代表论文的发表时间）