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Sensors 2016, 16(8), 1300; doi:10.3390/s16081300

A Matrix-Based Proactive Data Relay Algorithm for Large Distributed Sensor Networks

School of Computer Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
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Academic Editor: Xue-Bo Jin
Received: 21 June 2016 / Revised: 1 August 2016 / Accepted: 2 August 2016 / Published: 16 August 2016
(This article belongs to the Special Issue Advances in Multi-Sensor Information Fusion: Theory and Applications)
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Abstract

In large-scale distributed sensor networks, sensed data is required to be relayed around the network so that one or few sensors can gather adequate relative data to produce high quality information for decision-making. In regards to very high energy-constraint sensor nodes, data transmission should be extremely economical. However, traditional data delivery protocols are potentially inefficient relaying unpredictable sensor readings for data fusion in large distributed networks for either overwhelming query transmissions or unnecessary data coverage. By building sensors’ local model from their previously transmitted data in three matrixes, we have developed a novel energy-saving data relay algorithm, which allows sensors to proactively make broadcast decisions by using a neat matrix computation to provide balance between transmission and energy-saving. In addition, we designed a heuristic maintenance algorithm to efficiently update these three matrices. This can easily be deployed to large-scale mobile networks in which decisions of sensors are based on their local matrix models no matter how large the network is, and the local models of these sensors are updated constantly. Compared with some traditional approaches based on our simulations, the efficiency of this approach is manifested in uncertain environment. The results show that our approach is scalable and can effectively balance aggregating data with minimizing energy consumption. View Full-Text
Keywords: proactive data relay; information fusion; large distributed sensor networks; matrix-based computing proactive data relay; information fusion; large distributed sensor networks; matrix-based computing
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Xu, Y.; Hu, X.; Hu, H.; Liu, M. A Matrix-Based Proactive Data Relay Algorithm for Large Distributed Sensor Networks. Sensors 2016, 16, 1300.

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