Interference Analysis Between LoRaWAN and the Wi-Fi HaLow (802.11ah)

The development of Internet of Things (IoT) technology has advanced significantly, with technologies like LoRaWAN, Sigfox, ZigBee, and next-generation next-generation IoT (NB-IoT) being widely used. Wi-Fi HaLow, which offers better range and speed than LoRaWAN, is one such technology, but Indonesia lacks infrastructure to support it. This study analyzes the viability of Wi-Fi HaLow in Indonesia and its interaction with other IoT technologies, such as LoRaWAN, under interference conditions. Two scenarios are examined: interference from Wi-Fi HaLow to a LoRaWAN gateway and vice versa, using SEAMCAT software at 923 MHz. In this scenario, Wi-Fi HaLow serves as the interfering system, while LoRaWAN experiences disruption. The power variations of Wi-Fi HaLow were tested to identify the most efficient. Results show no interference at 8 km with 24 and 25 dBm, but interference occurs at 10 km with 26 dBm. Additionally, interference tests with varying numbers of Wi-Fi HaLow access points (APs) revealed minimal interference when the distance between the systems was 9 km, with interference rates ranging from 20% to 100%.