Abstract
Given a set of n sensor nodes distributed randomly over a 2-D plane, this paper addresses the problem of computing the area covered by the sensors assuming that each sensor covers a circular area of radius r. To make the computation simple, instead of considering real circles, a digital geometry based approach is followed here. A detailed study on intersection of digital circles reveals many interesting properties that lead to the development of a novel O(n logn) centralized algorithm using simple arithmetic operations for computing the area covered by n uniform digital circles. Next, a distributed version of the same is proposed to select a subset of nodes to cover a given area. Comparison with earlier works by simulation shows that the proposed distributed algorithm improves the estimated area coverage significantly.
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Saha, D., Das, N., Pal, S. (2014). A Digital-Geometric Approach for Computing Area Coverage in Wireless Sensor Networks. In: Natarajan, R. (eds) Distributed Computing and Internet Technology. ICDCIT 2014. Lecture Notes in Computer Science, vol 8337. Springer, Cham. https://doi.org/10.1007/978-3-319-04483-5_15
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DOI: https://doi.org/10.1007/978-3-319-04483-5_15
Publisher Name: Springer, Cham
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