延迟容忍移动传感器网络中基于社会网络的数据传输策略  

Social Network-based Data Delivery for Delay Tolerant Mobile Sensor Networks

作　　者：邝祝芳[1,2] 陈志刚[2] 邓晓衡[2] 

机构地区：[1]中南林业科技大学计算机与信息工程学院,长沙410004 [2]中南大学信息科学与工程学院,长沙410083

出　　处：《小型微型计算机系统》2011年第10期1967-1971,共5页Journal of Chinese Computer Systems

基　　金：国家"八六三"高技术研究发展计划项目(2008AA01A201)资助;国家自然科学基金面上项目(60873082;60903058;60902044;61073186)资助;湖南省科技计划项目(2009FJ3204)资助

摘　　要：延迟容忍移动传感器网络(DTMSN)是一种广泛应用的数据采集网络.提出一种基于社会网络的数据传输策略SNBD(social network-based data delivery scheme)应用于DTMSN.SNBD引入社会网络中的相互作用强度和相称机制,通过计算两传感器节点之间的相互作用强度值和相称值,作为消息传输时选择下一跳的依据.为了优化节点队列,SNBD采用消息的重要因子和TTL决定队列中消息传递的优先顺序和丢弃原则.模拟实验表明,与现有的几种数据传输策略相比,SNBD不但具有较高的数据传输成功率,而且具有较低的数据传输能耗和传输延迟,并且通过分析发现SNBD的网络寿命是SRAD和FAD的8倍.The delay tolerant mobile sensor network is a type of sensor network,which is used for data gathering.In this paper,a novel data gathering method named social network-based data delivery scheme（SNBD） is proposed.SNBD introduces interaction strength and assortative mechanism.The value of two nodes interaction strength and assortative is calculated which is used for choosing the next hop.In order to optimize node queue,SNBD employs importance factor parameter and TTL to decide message′s transmission and dropping for minimizing transmission overhead.Simulation results have shown that the proposed SNBD data delivery scheme does not only achieve eight times as much long network lifetime as SRAD and FAD,but also get the higher message delivery ratio with lower transmission overhead and data delivery delay than SRAD and FAD.

关 键 词：延迟容忍移动传感器网络 数据传输 相互作用强度 相称机制 队列管理 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]