Title: Coverage enhancement with occlusion avoidance in networked rotational video sensors for post-disaster management
Authors: Nawel Bendimerad; Bouabdellah Kechar
Addresses: Research Laboratory in Industrial Computing and Networks (RIIR), Department of Computer Science, University of Oran 1 Ahmed Ben Bella, P.O. Box 1524 El M'Naouar, Oran, Algeria ' Research Laboratory in Industrial Computing and Networks (RIIR), Department of Computer Science, University of Oran 1 Ahmed Ben Bella, P.O. Box 1524 El M'Naouar, Oran, Algeria
Abstract: Wireless video sensor networks (WVSNs) have recently emerged as a new class of sensor networks in which large amounts of visual data are sensed. This kind of networks, strengthened with rotation capability for each video sensor, is envisioned to be deployed to monitor a plethora of real-world phenomena. In this work, we propose a model of WVSN for post-disaster management in order to assist search and rescue operations by locating survivors and identifying risky areas. Rotatable video sensors are randomly deployed and used to switch to the best direction with the purpose of getting high coverage while avoiding obstacles. To address fault tolerance problem in WVSN, we build potential cover sets to unsure field of view's coverage of failed nodes. We have conducted a set of comprehensive experiments using OMNeT++ simulator and the obtained results reveal that our proposal gives better performance in terms of coverage enhancement and fault tolerance.
Keywords: wireless video sensor network; WVSN; coverage; scheduling; fault tolerance; occlusion; obstacles avoidance; OMNeT++.
International Journal of Information and Communication Technology, 2018 Vol.12 No.3/4, pp.319 - 344
Received: 26 Nov 2014
Accepted: 11 May 2015
Published online: 16 Jan 2018 *