无线传感器网络在线代码分发最新研究进展  

The Latest Research Progress on Online Code Distribution of Wireless Sensor Networks

作　　者：张国萍[1] 

机构地区：[1]浙江理工大学信息学院,杭州310018

出　　处：《浙江理工大学学报（自然科学版）》2015年第2期219-227,共9页Journal of Zhejiang Sci-Tech University(Natural Sciences)

基　　金：国家自然科学基金项目(61100214;61100057);浙江省教育厅项目(Y201432073)

摘　　要：无线传感器网络在线代码分发是在传感器网络首次部署完成后对其进行远程任务再分配、节点软件更新和网络功能再配置的过程,是拓展无线传感器网络应用生命周期的重要手段。纵观现有在线代码分发相关研究,它们大致可以分成三类:以减少数据包的传输、提高能耗有效性为目的的传输对象优化算法;以增强代码分发安全性为目的的基于非对称密钥加密的安全认证算法研究;以增强代码分发安全性为目的的基于对称密钥的安全认证算法研究。比较发现,在现有的研究中,基于高效的网络编码的代码分发算法能较好的降低通信负载,基于非对称密码体制的安全认证方案虽然计算和存储开销比较大,但是能大大增强代码分发的安全性,因此它是提高代码分发安全性的主流方法。最后总结了现有代码分发算法存在的问题:基本都是集中式、缺乏量化分析、抗DoS(Denial of Service)攻击问题等缺陷,并给出了针对这些问题展开进一步研究的建议。Online code distribution of WSNs(wireless sensor networks)is an important means to expand WSNs application life cycle.It is a process of re-assigning long-distance tasks,updating node software and re-configuring network functions after sensor networks complete deployment the first time.Existing online code distribution researches can be roughly classified into three types:the transmitting object optimization algorithm with the purpose of reducing the data package and improving energy consumption effectiveness;security authentication algorithm based on asymmetrical secret key cryptograph with the purpose of enhancing code distribution security;security authentication algorithm based on symmetric key with the purpose of enhancing code distribution security.It is found through comparison that in existing researches,code distribution algorithm based on efficient network code can well reduce communication load.Although security authentication scheme based on symmetric cryptosystem costs highly in calculation and storage,it can greatly enhance code distribution security.So,it is a mainstream method to boost code distribution security.Finally,this paper summarizes the following defects of existing code distribution algorithms:centralized-type,lack of quantitative analysis and anti-DoS(Denial of Service)attack.Besides,this paper provides suggestions on further studying these problems.

关 键 词：无线传感器网络 代码分发 安全认证 重编程 

分 类 号：TP393.0[自动化与计算机技术—计算机应用技术]