Performance of LoRa Gateway based Energy Consumption and Different Frame Sizes

Abstract

Data sensor sent continuously by LoRa gateway will cause excessive energy usage. This happened because generally, sensor data sent from node to gateway has a small size. For example, temperature data sensor which is approximately 4 Bytes while LoRa Gateway can forward data frame sizes up to 1500 Bytes for Ethernet once send or 2304 Bytes for WLAN. We developed and evaluated an LoRa gateway that is able to collect data before it sends the data to the cloud server. Therefore, the LoRa gateway may fully utilize the frame size of 1500 Bytes. The data buffer system that we applied may improve throughput on frame size 1362.5 Bytes with the energy consumption stable in 26.49 mWh. The energy consumption in the frame size of 78.37 Bytes differs slightly from the frame size of 1362.5 Bytes, which is 0.03 mWh. This system may improve energy consumption when the gateway forward data more than 201 KB. The energy consumption for 201 KB data size is 26.81 mWh and linear energy consumption data increases continuously until testing data with a size of 1567 KB, which is 32.76 mWh.