Abstract
Wireless sensor networks consist of tiny sensor nodes whose only energy source is battery. So, it is very important to monitor and control energy consumption of each sensor node to prolong sensor networks’ lifespan. This paper proposes two efficient sensor node control schems to prolong sensor networks’ lifespan. The proposed schems are to adaptively change RF transmission period and power level of each sensor node based on its remaining energy. In the first scheme, each sensor node adaptively changes its RF transmission period in reverse proportion to its remaining energy. By doing so, each sensor node can increase its lifetime. In the second scheme, each sensor node changes its RF transmission power level adaptively based on its remaining energy. On the contrary to the first scheme, the value of RF transmission power level of each sensor node is defined in proportion to its remaining energy. The simulation results show that the proposed schemes have good performance in the energy efficiency by adaptively controling RF transmission period and power based on remaining energy of each sensor node.
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© 2012 Springer Science+Business Media Dordrecht
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Park, HD., Ahn, HL., Park, KN., Kim, DH. (2012). Energy-Efficient Sensor Node Algorithm to Prolong Sensor Networks’ Lifespan. In: Park, J., Jeong, YS., Park, S., Chen, HC. (eds) Embedded and Multimedia Computing Technology and Service. Lecture Notes in Electrical Engineering, vol 181. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-5076-0_51
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DOI: https://doi.org/10.1007/978-94-007-5076-0_51
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-007-5075-3
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