一种面向空间信息网的SCPS-NP QoS单播路由机制

发布时间：2018-06-13 05:19

  本文选题：空间信息网 + SCPS-NP　； 参考：《小型微型计算机系统》2017年07期

【摘要】：为满足空间通信的要求,空间数据系统咨询委员会制定了空间通信协议规范.在SCPS-NP协议的基础上,利用最短路径算法,设计一种点到点QoS单播路由机制.为适应卫星网络动态变化的特点,采用时隙划分的方式对空间信息网进行分析,建立了相应的节点模型和拓扑模型.利用本文设计的路由机制,综合考虑QoS满意度和服务定价满意度,在空间信息网中找到满足QoS的路径.将所设计的QoS路由机制在NS2平台进行仿真实现并对路由机制进行了性能评价.实验结果表明,设计的机制是可行和有效的,比基准机制性能更优.
[Abstract]:In order to meet the requirements of space communication, the Advisory Committee of Spatial data Systems has formulated the specification of space communication protocol. Based on SCPS-NP protocol, a point-to-point QoS unicast routing mechanism is designed by using the shortest path algorithm. In order to adapt to the dynamic change of satellite network, the spatial information network is analyzed by slot division, and the corresponding node model and topological model are established. Using the routing mechanism designed in this paper, the QoS satisfaction and the service pricing satisfaction are considered synthetically, and the path to satisfy QoS is found in the spatial information network. The designed QoS routing mechanism is simulated on NS2 platform and the performance of the routing mechanism is evaluated. The experimental results show that the designed mechanism is feasible and effective, and the performance of the proposed mechanism is better than that of the benchmark mechanism.
【作者单位】： 东北大学信息技术研究院;东北大学计算机科学与工程学院;东北大学信息科学与工程学院;
【基金】：国家杰出青年科学基金项目(61225012,71325002)资助 国家自然科学基金项目(61572123)资助 辽宁省百千万人才工程项目(2013921068)资助
【分类号】：TN927
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本文编号：2012869