| LEO卫星网络的切换策略及性能分析 |
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| 引用本文： | 高丽娟,蒋太杰,高志翔. LEO卫星网络的切换策略及性能分析[J]. 上海航天, 2007, 24(4): 48-52 |
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| 作者姓名： | 高丽娟 蒋太杰 高志翔 |
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| 作者单位： | 1. 装备指挥技术学院,北京,101416
2. 烟台十四中学,山东,烟台,264002 |
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| 摘 要： | 采用Dijkstra算法,分析了低轨(LEO)卫星网络的距离最短、时延最小、跳数最小、持续时间最长等典型路由切换策略,并比较了性能。在综合考虑切换性能和时延等指标的基础上,提出了一种持续时间最长和时延最小组合,以及完全路由重构与部分路由重构结合的混合切换策略。各切换策略性能比较的结果表明,该混合切换策略的性能较优。
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| 关 键 词： | LEO卫星网络 星间链路 路由切换策略 距离 时延 跳数 持续时间 |
| 文章编号： | 1006-1630（2007）04-0048-05 |
| 收稿时间： | 2006-09-12 |
| 修稿时间： | 2006-10-18 |
Study on Handover Strategy of LEO Satellite Network for Dynamic Topology |
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| GAO Li-juan,JIANG Tai-jie,GAO Zhi-xiang. Study on Handover Strategy of LEO Satellite Network for Dynamic Topology[J]. Aerospace Shanghai, 2007, 24(4): 48-52 |
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| Authors: | GAO Li-juan JIANG Tai-jie GAO Zhi-xiang |
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| Abstract: | The typical route handover strategies such as the shortest length,the least delay,minimal-hop and the longest duration for low earth orbit were analyzed by using Dijkstra algorithm in this paper.The performances of the difference handover strategies were compared.The mixed handover strategy was put forward based on the handover feature and delay,which was combined the longest duration and the least delay using total and partial route reconstruction.The comparison of difference handover strategies showed that the performance of this mixed handover strategy was the best. |
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| Keywords: | Satellite network of low earth orbit Inter-satellite link Route handover strategy Path length Delay Hop Duration |
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