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DOI:
Journal of Software:2018.29(S1):32-42

基于时间距离与拓扑距离的连通性模型
刘琳岚,廖子粮,徐磊,舒坚
(南昌航空大学 物联网技术研究所, 江西 南昌 330063;南昌航空大学 信息工程学院, 江西 南昌 330063;南昌航空大学 物联网技术研究所, 江西 南昌 330063;南昌航空大学 软件学院, 江西 南昌 330063)
Connectivity Model Based on Temporal Distance and Topological Distance
LIU Lin-Lan,LIAO Zi-Liang,XU Lei,SHU Jian
(Internet of Things Technology Institute, Nanchang Hangkong University, Nanchang 330063, China;School of Information Engineering, Nanchang Hangkong University, Nanchang 330063, China;Internet of Things Technology Institute, Nanchang Hangkong University, Nanchang 330063, China;School of Software, Nanchang Hangkong University, Nanchang 330063, China)
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Received:May 01, 2018    
> 中文摘要: 网络连通性是描述网络性能的一项重要指标.机会传感网络中,节点移动导致网络的拓扑呈动态变化,这使得机会传感网络连通性的表征面临挑战.建立机会传感网络的连通性模型,有助于对机会传感网络的优化和维护.针对机会传感网络拓扑频繁变化的特点,基于时空图理论构建其连通性模型,描述拓扑演化规律;根据消息的可达性,考虑消息传输的时间特性和空间特性,定义了时间距离和拓扑距离,采用统计产品与服务解决方案软件(SPSS)分析其相关性,结果表明,时间距离和拓扑距离无明显相关性;采用网络快照间的时间距离与拓扑距离构建整网连通性模型.实验结果表明,所提出的模型能够从整体上刻画出机会传感网络的连通性;与基于Katz中心性的网络连通度模型相比,该模型能够更好地反映整网连通度的变化.
Abstract:Connectivity is an important metric of network performance. In opportunistic sensor networks (OSNs), the frequent topology change caused by node mobility leads to the challenges of representation of connectivity. Building connectivity model for OSNs is helpful for its optimization and maintenance. After analyzing the topological characteristics of OSNs, this paper constructs connectivity model based on temporal-spatial graph theory, which is employed to describe the topological evolution law. According to the message reachability, temporal distance and topological distance are defined based on message transmission temporal and spatial characteristics. The correlation between them is also analyzed by statistical product and service solutions (SPSS), and the results show that there is no obvious correlation. Thus temporal distance and topological distance of each snapshots are employed to construct overall network connectivity. Experimental results show that the proposed model can better depict the network connectivity of OSNs, and comparing with the connectivity model based on Katz centrality, it can represent the connectivity changes better.
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基金项目:国家自然科学基金(61762065,61363015,61262020);江西省自然科学基金(20171ACB20018,20171BAB202009,20171BBH80022);江西省研究生创新专项资金(YC2018-S371) 国家自然科学基金(61762065,61363015,61262020);江西省自然科学基金(20171ACB20018,20171BAB202009,20171BBH80022);江西省研究生创新专项资金(YC2018-S371)
Foundation items:National Natural Science Foundation of China (61762065, 61363015, 61262020); Natural Science Foundation of Jiangxi Province (20171ACB20018, 20171BAB202009, 20171BBH80022); Innovation Foundation for Postgraduate Student of Jiangxi Province (YC2018-S371)
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刘琳岚,廖子粮,徐磊,舒坚.基于时间距离与拓扑距离的连通性模型.软件学报,2018,29(S1):32-42

LIU Lin-Lan,LIAO Zi-Liang,XU Lei,SHU Jian.Connectivity Model Based on Temporal Distance and Topological Distance.Journal of Software,2018,29(S1):32-42