计算机科学与探索Issue(7)：832-838,7.DOI:10.3778/j.issn.1673-9418.1410040
基于分时的LEO卫星网络非对称路由算法
Discrete Time Based Asymmetric Routing Algorithm for LEO Satellite Networks
摘要
Abstract
This paper proposes an asymmetric discrete time based routing algorithm (A-DTRA) for LEO satellite networks. To the links state among each consecutive time intervals, this algorithm realizes links detection for satel-lite networks by central node broadcasting message twice, and each node has the knowledge of its direct 1-hop neighbors and the neighbors of its neighbors. So the directional virtual typology network can be obtained to every consecutive time intervals. The backup routing and routing table compression mechanism are used in routing algo-rithm, which can realize the reliability of the packet forwarding on asymmetric link, the timeliness of failure node disposal and the low consumption of satellite nodes overhead. Simulation results show that the connectivity of the network can be improved by A-DTRA, and the packet delivery ratio and the average end-to-end delay are superior to those by DTRA. It is well suitable for LEO satellite networks with asymmetric links.关键词
LEO卫星网络/非对称/路由算法/链路检测Key words
LEO satellite networks/asymmetric/routing algorithm/link detection分类
信息技术与安全科学引用本文复制引用
韦娟,薄振雨,刘叶,雷秀英..基于分时的LEO卫星网络非对称路由算法[J].计算机科学与探索,2015,(7):832-838,7.基金项目
The National Natural Science Foundation of China under Grant Nos.61201134，51375385(国家自然科学基金) （国家自然科学基金）
the 111 Project of China under Grant No. B08038(国家111项目) （国家111项目）
the Fundamental Research Funds for the Central Universities of China under Grant No. JB140110(中央高校基本科研业务费专项资金) （中央高校基本科研业务费专项资金）
the Natural Science Foundation of Shaanxi Province of China under Grant No.2014JM2-6116(陕西省自然科学基础研究计划项目) （陕西省自然科学基础研究计划项目）
