The article proposes an algorithm for ensuring the minimum power consumption of end nodes in a wireless network of sensors. A simulation model of the process of information exchange in a wireless network of sensors developed in the Matlab - Simulink software environment is presented, the use of which allows estimating the total power consumption when transmitting messages by all end nodes of the network during a given time interval.

Keywords: wireless sensor network, LoRaWAN, Internet of Things, Internet of Things, IoT, power consumption, simulation model, Simulink, signal attenuation, frame transmission