一种基于混合压缩感知的WSN能耗优化方法
发布时间:2018-02-27 07:27
本文关键词: 无线传感器网络 混合压缩感知 观测矩阵 能耗优化 重构精度 出处:《计算机工程与科学》2017年04期 论文类型:期刊论文
【摘要】:网络节点能耗是影响无线传感器网络生命周期的重要因素。提出了一种基于混合压缩感知(Hybrid-CS)的网络能耗优化方法。首先,为保证数据重构精度,根据参加数据收集节点数的不同,确定合理的观测矩阵维数范围。然后,通过分析不同维数观测矩阵对Hybrid-CS发送数据量的影响,求出较优的观测矩阵维数,从而使所设计的方法达到降低网络能耗的目的。仿真结果表明,该方法在节约网络能耗的同时还保证了数据重构精度。
[Abstract]:The energy consumption of network nodes is an important factor affecting the lifetime of wireless sensor networks. This paper proposes an optimization method of network energy consumption based on hybrid compression sensing hybrid-CS.Firstly, in order to ensure the accuracy of data reconfiguration, According to the different number of nodes participating in the data collection, the reasonable dimension range of the observation matrix is determined. Then, by analyzing the influence of the different dimension observation matrix on the amount of data transmitted by Hybrid-CS, the better dimension of the observation matrix is obtained. The simulation results show that the proposed method not only saves the energy consumption of the network, but also ensures the precision of data reconstruction.
【作者单位】: 华东理工大学化工过程先进控制和优化技术教育部重点实验室;
【基金】:国家自然科学基金(61273073,61304044,61374107)
【分类号】:TN929.5;TP212.9
,
本文编号:1541707
本文链接:https://www.wllwen.com/kejilunwen/xinxigongchenglunwen/1541707.html