Revisiting the lifetime of wireless sensor networks

Authors:
Kewei Sha;Weisong Shi
Affiliations:
Wayne State University;Wayne State University
Venue:
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
Year:
2004

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Abstract

Prolonging the lifetime of wireless sensor networks (WSN) is one of the most important goals in the sensor network research. A lot of work has been done to achieve this goal; however, current definition of lifetime is either superficial or impractical. In this paper, we take the first step to modeling the lifetime of a wireless sensor network by considering the relationship between the whole sensor network and individual sensors, as well as the importance of different sensors based on their positions. We envision that the proposed lifetime model can be used to evaluate energy-efficient protocols and algorithms, which is validated by simulation results.