Energy-efficient routing in wireless sensor networks using power-source type identification
by Konstantin Mikhaylov; Jouni Tervonen
International Journal of Space-Based and Situated Computing (IJSSC), Vol. 2, No. 4, 2012

Abstract: The real-life wireless sensor networks (WSNs) nowadays often include nodes that are powered by various power sources: mains; primary or secondary batteries; or energy harvesting systems, which generate power from the environment. Although information about the parameters of the available power sources for the WSN node is crucial for optimising the operation of the whole network, the contemporary WSN nodes can only estimate the level of their supply voltage at the current time. Therefore, in this paper we are suggesting a simple mechanism that identifies the type of WSN node's power source based on the measurements of the supply voltage. Based on the suggested power-source type identification (PSTID) mechanism, we introduce and propose the special routing protocol that is intended for WSNs containing nodes that have different power supply sources. The suggested routing protocol allows a significant increase in the lifetime of the whole network compared to the scenarios when no PSTID data is available. The proposed routing protocol is more universal then the existing routing protocols that take into account only the value of the supply voltage.

Online publication date: Tue, 30-Sep-2014

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