Open AccessWireless sensor node deployment strategy for hilly terrains – a surface approximation based approach
Author(s) -
Saikia Monjul,
Hussain Md. Anwar
Publication year - 2019
Publication title -
iet wireless sensor systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.433
H-Index - 27
ISSN - 2043-6394
DOI - 10.1049/iet-wss.2018.5095
Subject(s) - software deployment , wireless sensor network , terrain , computer science , key distribution in wireless sensor networks , real time computing , wireless , computer network , wireless network , geography , telecommunications , cartography , operating system
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.