TGM-COT: energy-efficient continuous object tracking scheme with two-layer grid model in wireless sensor networks |
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Authors: | Guangjie Han Jiawei Shen Li Liu Aihua Qian Lei Shu |
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Affiliation: | 1.Department of Information and Communication System,Hohai University,Changzhou,China;2.Guangdong Petrochemical Equipment Fault Diagnosis Key Laboratory,Guangdong University of Petrochemical Technology,Maoming,China |
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Abstract: | In a resource-constrained wireless sensor network, energy efficiency is a principle issue for monitoring the movement of continuous objects, such as wild fire and hazardous chemical material. In this paper, a continuous object tracking scheme with two-layer grid model (TGM-COT) is proposed. To address the problem of boundary distortion caused by uneven node distribution, we put forward a novel mechanism for boundary nodes identification. Furthermore, a streamlining mechanism is designed to reduce the amount of uploaded data. Simulation results demonstrate that, without sacrificing additional energy consumption, TGM-COT is able to achieve high tracking accuracy and significantly reduce the communication overhead. |
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