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-  2015 

卫星网络最短路径路由机制的仿真分析与评估 Performance evaluation of tactics of shortest-path routing in satellite communication networks

Keywords: 卫星通信网络,路由机制,性能评估,专家判断法,距离矢量,链路状态

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Abstract:

卫星网络中特殊的通信环境和特性为高效路由算法的设计带来了挑战,针对其中最优的最短路径路由机制的选择问题,提出了基于专家判断法的路由机制评估模型,包括指标体系的选择、权重设定、归一化等步骤.以距离矢量、链路状态和混合机制这3种机制在GEO网络中的性能比较为例,使用OPNET展开仿真实验获取路由指标,实验结果显示距离矢量机制更适合于网络拓扑结构较简单的场合,而链路状态机制则更适合于网络规模较大、拓扑结构复杂的场合.混合机制的整体性能最佳,但需要占用大量网络资源,所以适用于相对稳定的卫星网络

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