北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2009, Vol. 32 ›› Issue (2): 106-110.doi: 10.13190/jbupt.200902.106.luop

• 研究报告 • 上一篇    下一篇

智能光网络中分层路由的新算法

罗沛 黄善国 连伟华 李彬 顾畹仪   

  1. 北京邮电大学光通信中心 北京邮电大学光通信中心 北京邮电大学 北京邮电大学
  • 收稿日期:2008-04-28 修回日期:2008-12-25 出版日期:2009-04-28 发布日期:2009-04-28
  • 通讯作者: 罗沛

A Hierarchical Routing Algorithm in ION

shanguo huang LI Bin wanyi gu Weihua Lian   

  • Received:2008-04-28 Revised:2008-12-25 Online:2009-04-28 Published:2009-04-28

摘要:

针对智能光网络(ION)中的层次结构,提出了DHBRDHROG 2种分层路由算法. 2种算法均基于固定层备选路由策略,着重考虑了各层域间链路与网关节点处的资源协调与均衡. 离散事件仿真结果表明,2种算法均可以有效地提高网络性能,得到较低的阻塞率,并具有较好的时间特性.

关键词: 层次路由, 智能光网络, 域间路由, 固定备选路由, 路由与波长分配

Abstract:

The hierarchical routing infrastructure in intelligent optical network (ION) is researched. Two algorithms called dynamic hierarchical balancing routing algorithm (DHBR) and dynamic hierarchical routing algorithm based on optimized gateways (DHROG) are proposed in which the resource coordination, the balance for interdomain links and the gateway nodes are considered based on fixed alternate hierarchical routing. Simulation shows that the average block probability of the network can be reduced effectively with acceptable time performance by these algorithms.

Key words: hierarchical Routing, intelligent optical network, inter-domain routing, fixed alternate routing, routing and wavelength assignment