计算机应用 ›› 2013, Vol. 33 ›› Issue (10): 2750-2752.

• 网络与通信 • 上一篇    下一篇

基于环境感知的多路径路由算法

林沛,胡建军   

  1. 甘肃联合大学 电子信息工程学院,兰州 730000
  • 收稿日期:2013-04-25 修回日期:2013-06-24 出版日期:2013-10-01 发布日期:2013-11-01
  • 通讯作者: 林沛
  • 作者简介:林沛(1983-),男,甘肃武山人,讲师,硕士,CCF会员,主要研究方向:网络安全、网络规划与优化;胡建军(1971-),男,甘肃天水人,副教授,硕士,主要研究方向:计算机网络、信息处理。
  • 基金资助:
    甘肃省高等学校研究生导师科研项目;甘肃联合大学科研能力提升计划骨干项目

Environment-aware multiple-path routing algorithm

LIN Pei,HU Jianjun   

  1. School of Electronic and Information Engineering, University of Gansu Lianhe, Lanzhou Gansu 730000,China
  • Received:2013-04-25 Revised:2013-06-24 Online:2013-11-01 Published:2013-10-01
  • Contact: LIN Pei

摘要: 认知网络能够提高网络端到端的性能,确保服务质量(QoS)要求。而目前普遍使用的路由算法不具备网络认知能力。针对这一问题,提出一种具有认知能力的负载均衡多路径路由算法,该算法结合了Q学习算法和蚁群算法各自的优点,通过蚁群算法完成路径的建立和维护,Q学习算法实现拥塞规避和负载均衡。使用OPNET仿真比较,表明该算法在时延、带宽利用方面均具有较好的性能。

关键词: 多路径路由, 认知网络, Q学习算法, 蚁群算法, 拥塞避免

Abstract: Cognitive network can improve the end-to-end performance of the network, and ensure QoS(Quality of Service) requirements. The existing routing algorithm does not have cognitive ability. To solve this problem, a multi-path routing algorithm of cognitiveload balancing was proposed, which combined the advantages of Q-learning algorithm and ant algorithm, to establish and maintain the route through ant algorithm, and to achieve congestion avoidance and load balancing by Q-learning algorithm. The simulation contrast with OPNET shows that the algorithm is valid and effective at controlling packet loss ratio, delay and bandwidth utilization.

Key words: multiple-path routing, cognitive networks, Q-learning algorithm, ant colony algorithm, congestion avoidance

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