Packet Drop and RSSI Evaluation for LoRa: An Indoor Application Perspective

LoRa is widely used in the Wireless networking sector because of the unique quality such as low power, low bit rate, long-range, and single-hop wireless communication system. With the advancement of the Internet of Things (IoT), LoRa is one of the most useful technology in comparison to other wireless networking technology such as Bluetooth Low Energy (BLE), Zigbee, and Wi-Fi. In this paper, we have considered the parameter of RSSI and packet drop in the indoor environment. For the LoRa we use the Adafruit RFM95W LoRa radio module for its ability to change bandwidth and Spreading Factor (SF). In our research, we use 915 MHz bandwidth and SF7. Subsequently, we also consider SF7, because theoretically the less the SF the more the packet drops. We tried to find out how many packets will be dropped in the indoor scenario with the short distance as the SF has a higher chance to drop more massages. We have sent 800 LoRa messages from the transmitter to the five different locating receiver end devices to learn about the RSSI and packet drop.