基于精英蚂蚁算法的动态路由和波长分配研究  

Research of the DRWA Problem Based on EAS Algorithm

作　　者：孙文胜[1] 景勇祥[1] 

机构地区：[1]杭州电子科技大学通信工程学院,杭州310018

出　　处：《电子器件》2013年第2期274-277,共4页Chinese Journal of Electron Devices

摘　　要：为了更有效地解决密集波分复用光网络中动态路由和波长分配问题,提高光网络中资源利用率,提出了一种基于精英策略蚂蚁系统算法的动态路由和波长分配问题的解决方法。在仿真中通过将精英策略蚂蚁算法应用到经典的美国国家科学基金会网络中,动态地完成路由和波长的分配。仿真结果表明,精英策略蚂蚁算法能够降低网络阻塞率,有效提高密集波分复用光网络的带宽资源利用率,并且随着波长数目或者网络负载的不断增加,这种优势更加明显。In order to solve the problem of dynamic routing and wavelength assignment（DRWA）in the DWDM optical networks effectively,improve the resource utilization in DWDM optical networks,a solution is proposed based on the Elite Ant System（EAS）algorithm to resolve the DRWA problem to complete the routing and wavelength assignment by applying the EAS algorithm to a typical NSF network in the simulations.The simulation results show that this algorithm can reduce the network congestion rate,improve the bandwidth resources utilization in the WDM optical network,and the advantages can be more obvious with the increasing of number wavelengths ＇number or the network load.

关 键 词：密集波分复用 动态路由和波长分配 精英策略蚂蚁算法 网络阻塞率 资源利用 

分 类 号：TN915.5[电子电信—通信与信息系统]