摘要
针对延迟容忍移动传感器网络(DTMSN,delay tolerant mobile sensor networks)提出一种基于节点运动状态的数据传输(MSD,motion state-based delivery)策略。MSD使用2个通信频率,传感器节点利用基站在频率f1上的广播信号完成自身运动状态和传输概率的计算,并以此作为利用频率f2进行消息转发的依据。为了提高性能,MSD中利用消息生存时间和自身消息优先传输机制来完成消息队列的管理。仿真结果表明,与现有的几种DTMSN数据传输策略相比,MSD能够以较低的通信开销和传输延迟达到较高的数据传输成功率。
A motion state-based data delivery scheme（MSD） was proposed for delay tolerant mobile sensor network.By using the broadcasting signal of base station on the frequency of f1,sensor nodes could compute their own motion stated and delivery probabilities which provided the bases for messages transmitting between nodes on the frequency of f2.In order to improved network performance,MSD employed the message survival time and prior forwarding mechanism of own messages to manage the message queue.Simulation results show that the proposed MSD data delivery scheme has a higher message delivery ratio with lower transmission cost and less data delivery delay than other DTMSN（delay tolerant mobile sensor networks） data delivering approaches.
出处
《通信学报》
EI
CSCD
北大核心
2010年第11期138-146,共9页
Journal on Communications
基金
国家自然科学基金资助项目(60821001
61070204)
国家重大科技专项基金资助项目(2009ZX0300400303)
中国博士后科学基金资助项目(20100471762)
北京邮电大学青年科研创新计划基金资助项目(2009RC0218)~~
