Energy Consumption Evaluation of LoRa Sensor Nodes in Wireless Sensor Network

The battery life of sensor nodes in a wireless sensor network (WSN) is usually limited. In most Internet of Things (IoT) applications, sensor nodes must operate reliably for a longer duration. Energy efficiency is crucial for extending the lifetime of sensor nodes. In addition, the radio settings should withstand a better data rate transmission while maintaining energy efficiency. LoRa/LoRaWAN is a low-power wide-area network (LPWAN) technology that has recently received a lot of interest. This work proposes a LoRa-based energy consumption model that can be used to estimate the amount of energy each sensor node element in a WSN consumes. The effect of sensing interval and spreading factor on battery lifetime is discussed to determine its effects, when used for field application.