Energy-efficient model for guaranteed area coverage in sensor networks with random deployed sensors

Authors:
Vyacheslav Zalyubovskiy;Tatiana Aldyn-ool;Jaehyoun Kim;Hyunseung Choo
Affiliations:
Sobolev Institute of Mathematics, Russian Academy of Sciences, Novosibirsk, Russia;Novosibirsk State University, Novosibirsk, Russia;Sungkyunkwan University, Seoul, Korea;Sungkyunkwan University, Suwon, Korea
Venue:
Proceedings of the 6th International Conference on Ubiquitous Information Management and Communication
Year:
2012

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Abstract

One of the main tasks of a wireless sensor network is to provide a necessary level of coverage of their deployment regions. We consider wireless sensor networks where all sensors are independently and uniformly distributed in a finite plane area. We assume that events within the sensing range from some sensor are detectable and the sensor is called to cover that point. In this paper, we investigate a regular coverage model, study how the probability of coverage changes with the sensing range or number of sensors, and formulate an exact mathematical expression for the expected covered ratio. These results allow for determining related parameters (grid size, number of active sensors) for a desired level of sensing coverage.