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发明公开
CN107395457A 基于排队模型的空间DTN网络链路可用带宽估计方法及系统 失效 - 权利终止

基于排队模型的空间DTN网络链路可用带宽估计方法及系统
摘要：
本发明公开了一种基于排队模型的空间DTN网络链路可用带宽估计方法及系统，本发明通过在空间DTN网络链路上发送探测包收集时延信息，分析bundle的传输过程和交付时延，并应用排队论知识对bundle的到达离开过程建立M/D/1排队模型，推导出bundle的逗留时间和网络流量的关系式，对空间DTN网络中链路可用带宽进行估计。最后，采用蒙特卡罗方法在MATLAB平台上进行仿真实验。实验结果表明，本发明提出的算法能够较准确的估计出空间DTN网络中链路的可用带宽，为QoS服务提供数据指导。
摘要（英）：

The invention discloses a spatial DTN link available bandwidth estimation method and system based on a queuing model. The method is characterized in that probe bundles are sent on a spatial DTN link to collect time delay information; transmission processes and delivery time delays of the bundles are analyzed, an M/D/1 queuing model is established for an arrival and departure process of the bundles through knowledge of the queuing theory, and a relation between a staying time of the bundles and network traffic is derived to estimate a spatial DTN link available bandwidth; and finally, a simulation experiment is carried out on an MATLAB platform through the Monte Carlo method. Experiment results show that through the algorithm provided by the invention, the spatial DTN link available bandwidth can be more accurately estimated, so that data guidance can be provided for QoS service.

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