Wireless sensor node deployment strategy for hilly terrains – a surface approximation based approach. (1st October 2019)

• Record Type: Journal Article
• Authors: Saikia, Monjul; Hussain, Md. Anwar
• Is Part Of: IET wireless sensor systems. Volume 9:Number 5(2019)
• Page Start: 284
• Page End: 294
• Publication Date: 2019-10-01
• Subjects: splines (mathematics) -- sensor placement -- wireless sensor networks -- terrain mapping; hilly terrains -- 2D flat surface -- three‐dimensional wireless sensor network -- surface approximation -- wireless sensor node deployment -- B‐spline surface generation model -- 2D sensor deployment -- truncated octahedron -- regular space‐filling polyhedron -- SASD‐TO approach; Wireless sensor networks -- Periodicals; 681.2
• DOI: 10.1049/iet-wss.2018.5095
• Languages: English
• ISSNs: 2043-6386

Abstract

Abstract : Sensor deployment in a wireless sensor network (WSN) is a challenging task due to the high chance of occurrence of the error in the deployment process, which makes the network inefficient. Particularly in three‐dimensional (3D) WSN, the ideal positioning of sensor nodes over the ground with precise coverage and connectivity is a very significant consideration in the deployment of sensors. Various models for 2D sensor deployment have been proposed to date, but in real‐world scenarios, the target field (field of interest) is not always 2D flat surface and therefore a 2D deployment model cannot address the issue of deploying sensor nodes on uneven surfaces such as hilly terrains. In this paper, we presented a surface approximation‐based sensor deployment using truncated octahedron (SASD‐TO) to solve the problems of sensor deployment on an irregular surface. Using the B‐Spline, a 3D model of the target surface is approximated and then a Truncated Octahedron is used to estimate the exact coordinates of a sensor node. A very decent coverage area as high as 98% on average, whereas at lowest 2% of the uncovered area and 8% of the superimposed area were observed.