| 基于地理位置信息的无收敛多测度卫星网络路由算法研究 |
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| 引用本文： | 王路,刘立祥,胡晓惠.基于地理位置信息的无收敛多测度卫星网络路由算法研究[J].宇航学报,2011,32(7). |
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| 作者姓名： | 王路 刘立祥 胡晓惠 |
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| 作者单位： | 1. 中国科学院软件研究所,北京100190;中国科学院研究生院,北京100049
2. 中国科学院软件研究所,北京,100190 |
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| 摘 要： | 设计了一种基于地理位置信息的无收敛多测度的卫星网络路由算法CFR,算法根据地理位置关系、延迟和链路丢包率三种测度计算路由,满足不同应用的服务质量要求.当有数据到达时,卫星根据地理位置关系、网络拓扑和链路状态实时计算数据传输路径,避免了路由收敛过程.在此基础上,为有效均衡卫星网络负载,卫星将链路负载信息通告给数据传输路径上各颗卫星,卫星根据负载调节数据传输路径,有效地均衡了网络负载,减少了数据丢失,增加了吞吐量.
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| 关 键 词： | 卫星网络 无收敛 多测度 负载均衡 地理位置信息 |
Geographical Location-Based Convergence-Free Routing Using Multiple Metrics for Satellite Networks |
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| WANG Lu,LIU Li-xiang,HU Xiao-hui.Geographical Location-Based Convergence-Free Routing Using Multiple Metrics for Satellite Networks[J].Journal of Astronautics,2011,32(7). |
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| Authors: | WANG Lu LIU Li-xiang HU Xiao-hui |
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| Institution: | WANG Lu1,2,LIU Li-xiang1,HU Xiao-hui1(1.Institute of Software,Chinese Academy of Sciences,Beijing 100190,China,2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China) |
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| Abstract: | A novel satellite network routing algorithm named CFR is proposed in this paper.In the CFR geographical location,delay and packet drop rate are used as metrics to calculate routes to meet different QoS requirements.When packets arrive,instead of using global routing tables,CFR calculates routes in real time,in order to achieve convergence free.In addition,an explicit load balancing mechanism is proposed to achieve load balance.The link load information is exchanged among satellites transmitting packets from... |
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| Keywords: | Satellite network Convergence free Multiple metrics Load balancing Geographical location |
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