| 基于ACO的LEO卫星网络路由研究 |
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| 引用本文： | 王平,顾学迈.基于ACO的LEO卫星网络路由研究[J].南京理工大学学报(自然科学版),2007,31(3):364-369. |
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| 作者姓名： | 王平 顾学迈 |
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| 作者单位： | 哈尔滨工业大学,通信技术研究所,黑龙江,哈尔滨,150001 |
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| 摘 要： | 为了解决低轨卫星网络动态拓扑路由问题,通过更改蚁群优化(Ant Colony Optimization,ACO)算法结构以及信息素更新策略进行调整,提出一种适合LEO卫星网络的具有多QoS约束条件的ACO路由算法.这种路由算法能够根据LEO卫星网络中业务流量分布的变化对网络最优路径做出调整、均衡网络负载、避免拥塞,实现多种QoS指标的联合最优.仿真结果表明:在网络接近满负荷的情况下,路由算法在保证业务QoS需求的同时,使网络资源得到了充分利用.
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| 关 键 词： | 低轨卫星网络 路由算法 QoS 蚁群优化 卫星网络 网络路由 研究 Satellite Network 利用 网络资源 需求 保证业务 情况 满负荷 仿真结果 最优路径 指标 避免拥塞 网络负载 均衡 变化 流量分布 路由算法 条件 |
| 文章编号： | 1005-9830（2007）03-0364-06 |
| 修稿时间： | 2006-06-052007-04-04 |
ACO-based Routing Algorithm for LEO Satellite Network |
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| WANG Ping,GU Xue-mai.ACO-based Routing Algorithm for LEO Satellite Network[J].Journal of Nanjing University of Science and Technology(Nature Science),2007,31(3):364-369. |
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| Authors: | WANG Ping GU Xue-mai |
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| Institution: | Communications Research Center, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | Based on tuning architecture of ant colony optimization(ACO) and updating strategy of pheromone,the paper proposes a routing algorithm with multi-Quality of Service constraint conditions for LEO satellite network,to solve the routing problem of dynamic topology over LEO(low earth orbit) satellite networks.The routing algorithm is capable of adjusting current optimization path,balancing the network load,avoiding network congestion,and achieving optimization combined with multi-QoS in time according to change of traffic's distribution.The results show that in the nearly full load of the network the routing algorithm guaranteeds QoS of traffic and makes full use of network resources. |
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| Keywords: | low earth orbit satellite network routing algorithm quality of service ant colony optimization |
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