近地卫星网络的一致随机超图数据传输模型  

Transport Model of Uniform Random Hypergraph for Low Earth Orbit Networks

作　　者：于海征[1] 边红[2] 

机构地区：[1]新疆大学数学与系统科学学院,乌鲁木齐830046 [2]新疆师范大学数学科学学院,乌鲁木齐830054

出　　处：《电子科技大学学报》2014年第4期607-611,共5页Journal of University of Electronic Science and Technology of China

基　　金：国家自然科学基金(11361062;61262087;61262089);自治区高校科研计划重点项目(XJEDU2012I28;XJEDU2013I04);自治区自然科学基金(2013211A021)

摘　　要：容忍延迟网络的架构提供了一种通信系统,更大程度地符合逐渐复杂的空间通信。针对近地卫星轨道网络,利用容忍延迟网络的bundle协议,数据块被封装成bundle包,在小卫星与地面基站之间进行传输。经过一段时间的传输和出错bundle包重传过程,利用随机超图构建了一致随机超图模型,建立bundle包传输的图结构,得出bundle包出错的概率和超图结构的关系,刻画了卫星与地面基站的消息传输过程。仿真实验证实了bundle出错概率和传输的图结构之间存在着紧密的关系。The architecture of delay tolerant networks （DTN） provides a kind of communication system for growing complexity of space communication. Aiming to low earth orbit satellite networks, the data is encapsulated into multiple bundles and transmitted between a small satellite near earth and the ground stations by using the bundle protocol of DTN. During the process of data transport and the retransmission of the wrong bundle, a random uniform hypergraph model is constructed by using of random hypergraph, and the structure diagram of bundle transmission is also constructed. The model can obtain the relations of the error probabilities of bundles and the structure of hypergraph, and characterize the process of data transport between the satellite and the ground stations. Simulation results show that the error probabilities of bundles and the structure of hypergraph are closely related.

关 键 词：数据传输 容忍延迟网络 超图 近地卫星 

分 类 号：TP393[自动化与计算机技术—计算机应用技术] O157.6[自动化与计算机技术—计算机科学与技术]