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

Abstract:

The energy consumption of network nodes has an important effect on network lifetime. We propose a network energy consumption optimization method based on HybridCS. Firstly, according to the number of nodes participating in data gathering, a reasonable dimension range of measurement matrix is determined in order to ensure the accuracy of date reconstruction. Secondly, by analyzing the effect of different measurement matrix dimensions on the amount of sending data, we derive a better measurement matrix dimension for HybridCS, thus the reduction of network energy consumption can be achieved. Simulation results show that the proposed method cannot only save network energy, but also ensure the accuracy of data reconstruction.

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