保持失真度的无线传感器网络簇节点选取算法  

Distrotion-Preserving Sensor Selection Strategy for Wireless Sensor Networks

作　　者：严团飞 张剑峰[2] 谢威[2] YAN Tuan-fei ZHANG Jian-feng XIE Wei(Postgrauate Team 3 CCE, PLAUST, Nanjing 210007, China College of Communications Engineering, PLAUST)

机构地区：[1]解放军理工大学通信工程学院研究生3队,江苏南京210007 [2]解放军理工大学通信工程学院

出　　处：《军事通信技术》2016年第3期5-10,44,共7页Journal of Military Communications Technology

基　　金：国家自然科学基金资助项目(61371123)

摘　　要：无线传感器网络中,高能效的MAC层接入协议对于能量受限的传感器节点非常关键。文章设计了基于空间相关信息的最低能耗簇节点选取算法,并通过建立凸优化模型来推导出选取节点的优先级函数,避免了繁琐的解方程运算。仿真结果表明该算法在保证数据采集失真度的同时能有效降低网络能耗,从而延长网络寿命。In Wireless Sensor Networks（WSNs）,power-conserving MAC design is vitally important for sensors with limited energy.An energy-efficient sensor selection algorithm was proposed based on spatial correlation between sensors.A convex optimization model was set up and this convex optimization problem was solved by adopting apriority ordering method instead of solving the complicated equations.The simulation results indicate the energy consumption of WSNs can be decreased without compromising the data distortion,and the algotirhm prolongs the lifetime of WSNs.

关 键 词：无线传感器网络 节点选取 能效 失真度 空间相关信息 优先级 

分 类 号：TN929.5[电子电信—通信与信息系统]