摘要
对无线移动网络通信用户节点进行准确跟踪,能够有效提高网络运行稳定性。对通信用户节点的跟踪监测,能够建立节点生存期函数,选取生存期最大化节点作为跟踪目标,完成对用户节点的跟踪监测。传统方法结合加权质心定位算法,优化网络簇头节点调度,但忽略了对最优跟踪节点的选取,导致跟踪监测精度偏低。提出具有跟踪质量保证的无线移动网络通信用户节点选择方法。建立无线移动网络节点生存期函数,在满足目标跟踪可靠度要求的前提下选取使无线移动网络生存期最大化的节点参与目标跟踪,目标状态初始化由无线移动网络通信用户节点利用加权最小二乘法完成,整个跟踪过程依据动态成簇机制分阶段选取并唤醒关键序列任务节点检测目标,执行平均一致性滤波策略完成跟踪目标的状态估计。实验结果表明,上述方法进行目标跟踪的能量消耗小、网络节点生存期长、目标跟踪精度高。
A node selection method of wireless mobile network communication user based on tracking quality assurance is proposed. The life-cycle function of wireless mobile network node is established. On the premise of satisfying the reliability of target tracking, the node which can maximize lifetime of wireless mobile network is selected to participate in target tracking. Using the weighted least squares method, the initialization of target state is completed by the node of communication user in wireless mobile network. Based on dynamic clustering mechanism, the tracking process is periodically selected, and the detection task of target node in key sequence is wakened up. Finally, average consensus filtering strategy is performed to complete state estimation of target tracking. Simulation proves that the proposed method has less energy consumption, long lifetime of network node and high accuracy in target tracking.
作者
刘建友
李代平
LIU Jian-you, LI Dai-ping(Guangdong Institute of Technology, Zhaoqing Guangdong 526100, Chin)
出处
《计算机仿真》
北大核心
2018年第5期448-451,共4页
Computer Simulation
关键词
移动网络
通信用户
节点跟踪
Mobile network
Communication user
Node tracking
