Energy-balanced hole-movement mechanism for temporal full-coverage in mobile WSNs

Authors:
Chih-Yung Chang;Wei-Cheng Chu;Chih-Yu Lin;Chien-Fu Cheng
Affiliations:
Tamkang University, Taipei, Taiwan, R.O.C.;National Cheng Kung University, Tainan, Taiwan, R.O.C.;Tamkang University, Taipei, Taiwan, R.O.C.;Tamkang University, Taipei, Taiwan, R.O.C.
Venue:
Proceedings of the 6th International Wireless Communications and Mobile Computing Conference
Year:
2010

Citing 1
Cited 1

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Abstract

In wireless mobile sensor networks, spatial full-coverage only can be achieved when the surplus mobile sensors contribute a larger coverage area than the hole size. The temporal full coverage problem asks to monitor every point of a given monitoring region within a specific time interval. This paper considers a mobile WSN that contains holes but exists no redundant mobile sensor to heal the hole. To achieve the temporal full-coverage purpose, a distributed hole-movement mechanism is proposed to balance the energy consumptions of mobile sensors. Simulation study reveals that the proposed hole-movement mechanism enhances the coverage ratio of WSN and balance the energy consumption of mobile sensor nodes.