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Sensors 2016, 16(8), 1318; doi:10.3390/s16081318

CS2-Collector: A New Approach for Data Collection in Wireless Sensor Networks Based on Two-Dimensional Compressive Sensing

College of Computer Science and Technology, Harbin Engineering University, Harbin 150001, China
School of Computer Science and Technology, Shandong University, Jinan 250100, China
Department of Computer Science, University of Oxford, Oxford OX1 3QD, UK
Author to whom correspondence should be addressed.
Academic Editors: Dongkyun Kim and Houbing Song
Received: 28 June 2016 / Revised: 7 August 2016 / Accepted: 15 August 2016 / Published: 19 August 2016
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In this paper, we consider the problem of reconstructing the temporal and spatial profile of some physical phenomena monitored by large-scale Wireless Sensor Networks (WSNs) in an energy efficient manner. Compressive sensing is one of the popular choices to reduce the energy consumption of the data collection in WSNs. The existing solutions only consider sparsity of sensors’ data from either temporal or spatial dimensions. In this paper, we propose a novel data collection strategy, CS2-collector, for WSNs based on the theory of Two Dimensional Compressive Sensing (2DCS). It exploits both temporal and spatial sparsity, i.e., 2D-sparsity of WSNs and achieves significant gain on the tradeoff between the compression ratio and reconstruction accuracy as the numerical simulations and evaluations on different types of sensors’ data. More intuitively, with the same given energy budget, CS2-collector provides significantly more accurate reconstruction of the profile of the physical phenomena that are temporal-spatially sparse. View Full-Text
Keywords: two-dimensional compressive sensing; Kronecker product; wireless sensor networks two-dimensional compressive sensing; Kronecker product; wireless sensor networks

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Wang, Y.; Yang, Z.; Zhang, J.; Li, F.; Wen, H.; Shen, Y. CS2-Collector: A New Approach for Data Collection in Wireless Sensor Networks Based on Two-Dimensional Compressive Sensing. Sensors 2016, 16, 1318.

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