摘要
针对延迟容忍移动传感器网络(DTMSN)的随机移动特性和连通的间歇性等问题,提出了基于网络编码的可靠传输机制。基于DTMSN传感器节点的移动性和网络编码技术,综合考虑了影响DTMSN服务质量保障的各种因素,将数据包以簇为单位映射到网络中,基于误码率机会选择中继转发节点确定最佳传输方案。仿真实验分析结果表明,所提可靠传输机制在误码率、实时性和能效方面与直接传递和泛洪算法相比具有更优越的性能。
According to the random mobility and connectivity of intermittent problems in delay tolerant mobile sensor network, this paper proposed the reliable transmission mechanism based on network coding. Based on the DTMSN sensor node mobility and network coding technique, considering the factors affecting DTMSN quality of service guarantee, the data packet to the cluster as units mapped to network, it created the optima/transmission scheme according to the bit error rate and relay forwar- ding nodes, which were selected by opportunity. The simulation experiment results show that, the proposed reliable transmis- sion mechanism compared with the direct transmission and flooding algorithm has better performance, such as bit error rate, real- time and efficiency.
出处
《计算机应用研究》
CSCD
北大核心
2015年第1期202-205,共4页
Application Research of Computers
基金
国家自然科学基金资助项目(2011j0311)
浙江省自然科学基金资助项目(yfa20100067)
关键词
延迟容忍移动传感器网络
数据传输
网络编码
可靠性
delay tolerant mobile sensor network （DTMSN）
data transmission
network coding
reliability
