基于小世界效应的异构传感器网络构造研究  

Construction to Heterogeneous Sensor Networks Based on Effect of Small World

作　　者：孟安波[1] 陈鹏[2] 

机构地区：[1]广东工业大学自动化学院,广州510090 [2]三峡大学电气信息学院,宜昌443002

出　　处：《计算机与数字工程》2008年第9期98-101,112,共5页Computer & Digital Engineering

基　　金：广东省高等学校重点自然科学基金项目(编号:070043)资助

摘　　要：将小世界网络理论应用于无线传感器网络领域,建立了无线传感器网络中小世界特征量的统计方法。通过在无线传感器网络中引入与汇聚节点直接通信的链路(捷径)形成具有小世界效应的异构传感器网络,并给出了异构传感器网络的路由策略和捷径的效益评价指标;结合小世界网络的安全特征提出异构传感器网络中需要加强对节点度高的关键节点的安全保障。选用格网网络模型作为具体的研究对象,仿真表明在构造具有小世界特征的传感器网络时需要确定性的设置捷径才会产生良好的节能效果,捷径产生的节能效率与汇聚节点的位置相关。The small world network theory is introduced in the field of wireless sensor network （WSN）, and the special metrices of small world in WSN are constructed and the statistical methods are provided. The heterogeneous sensor network is constructed by adding links as short cut, which communicate to the sink directly, into pure WSN. The touting policy and evaluation method of short cut are provided. The network security and maintenance strategies are formed according to the security character of small world. The grid network model is adapted as the research object, through the simulations, some numeric results are shown that the ＂short cut＂ should be deterministically deployed so as to obtain better energy saving rate, and the position of the sink has impact on the energy efficiency in WSN.

关 键 词：异构传感器网络 小世界效应 构造 

分 类 号：TP393.02[自动化与计算机技术—计算机应用技术]