Title :
Joint energy-balanced and full-coverage mechanism using sensing range control for maximizing network lifetime in WSNs
Author :
Chang, Chih-Yung ; Yu, Gwo-Jong ; Lin, Chih-Yu ; Wang, Tzu-Lin
Author_Institution :
Tamkang Univ., Taipei, Taiwan
Abstract :
Coverage is an important issue that has been widely discussed in wireless sensor networks (WSNs). However, it is still a big challenge to achieve both the purposes of full coverage and energy balancing. This paper considers the area coverage problem for a WSN where each sensor has variable sensing radius. A Weighted Voronoi Diagram (WVD) is proposed as a tool for determining the responsible sensing region of each sensor node according to the remaining energy in a distributed manner. To maximize the network lifetime, techniques for balancing energy consumptions of sensors are further presented. Performance evaluation reveals that the proposed joint energy-balanced and full-coverage mechanism, called EBFC, outperforms the existing studies in terms of network lifetime and degree of energy balancing.
Keywords :
computational geometry; energy consumption; telecommunication control; wireless sensor networks; EBFC; WSN; WVD; area coverage problem; energy balancing; energy consumptions; energy-balanced mechanism; full-coverage mechanism; network lifetime; sensing range control; weighted Voronoi diagram; wireless sensor networks; Energy consumption; Energy measurement; Joints; Monitoring; Redundancy; Sensors; Wireless sensor networks; WSNs; area coverage; energy balancing; variable sensing radius; weighted voronoi diagram;
Conference_Titel :
Ubiquitous and Future Networks (ICUFN), 2012 Fourth International Conference on
Conference_Location :
Phuket
Print_ISBN :
978-1-4673-1377-3
Electronic_ISBN :
2165-8528
DOI :
10.1109/ICUFN.2012.6261660