摘要
对无线传感网络的最大功率点进行准确跟踪,可以提高无线传感网络运行的稳定性、保障其生命周期。无线传感网络中,要通过计算输出层节点反馈的能量消耗才能实现最大功率点跟踪,而传统算法在进行最大功率点跟踪时忽略了无线传感网络中的能量消耗,不能获得能量消耗最小时的最大功率点跟踪的目标函数,降低了跟踪的精度。提出一种利用通信数据流的无线传感网络最大功率点的跟踪方法。从通信数据流的角度出发建立无线传感网络的能量模型,对无线传感网络中的能量消耗进行计算,获得能量消耗最小时的整个无线传感网络最大功率点跟踪的优化目标函数,实现了无线传感网络最大功率点的准确跟踪。仿真结果表明,利用改进算法能够提高无线传感网络最大功率点跟踪的精度,具有较好的适用性。
The maximum power point tracking in wireless sensor network can be achieved by calculating energy consumption through the feedback from output layer nodes. The traditional maximum power point tracking algorithm ignores the energy consumption of wireless sensor network, cannot obtain the optimal objective function of maximum power point tracking with the minimum energy consumption, so as to reduce the tracking precision. A tracking meth- od of the maximum power point in wireless sensor network is put forward based on communication data flow. From the perspective of communication data flow, an energy model of wireless sensor network is established, and the energy consumption is calculated. The optimization objective function of the maximum power point tracking in the wireless sensor network with the minimum energy consumption is obtained, and the maximum power point tracking of the wireless sensor network is accurately implemented. Simulation results show that the proposed algorithm can improve the maximum power point tracking accuracy and has good applicability.
出处
《计算机仿真》
CSCD
北大核心
2016年第4期332-335,共4页
Computer Simulation
关键词
无线传感网络
最大功率点
跟踪
Wireless sensor network
Maximum power point
Tracking
