%0 Journal Article %T SIVEH: Numerical Computing Simulation of Wireless Energy-Harvesting Sensor Nodes %A Antonio Sanchez %A Sara Blanc %A Salvador Climent %A Pedro Yuste %A Rafael Ors %J Sensors %D 2013 %I MDPI AG %R 10.3390/s130911750 %X The paper presents a numerical energy harvesting model for sensor nodes, SIVEH (Simulator I¨CV for EH), based on I¨CV hardware tracking. I¨CV tracking is demonstrated to be more accurate than traditional energy modeling techniques when some of the components present different power dissipation at either different operating voltages or drawn currents. SIVEH numerical computing allows fast simulation of long periods of time¡ªdays, weeks, months or years¡ªusing real solar radiation curves. Moreover, SIVEH modeling has been enhanced with sleep time rate dynamic adjustment, while seeking energy-neutral operation. This paper presents the model description, a functional verification and a critical comparison with the classic energy approach. %K energy and resource management %K low-power hardware design %K numerical computing %K wireless sensor networks %K energy harvesting %K energy neutral operation %K simulation model %U http://www.mdpi.com/1424-8220/13/9/11750