Analysis of LoRa (Long Range) Performance as The Development of Remote Communication for Earthquake Detection Systems in High-rise Buildings

Abstract

Earthquakes are defined as natural disasters with a severe impact on the surrounding environment. However, it is very often that the process of disaster mitigation information is not spread by conveying it to the public due to power outages and damaged communication networks. In this regard, there is a communication technology; Long Range (LoRa) which focuses on communication systems designed for wireless Local Area intercommunication, and long-distance communication with low power. but the evaluation and analysis of LoRa performance in the real world with specific case studies became a mini research topic. This research sought to assess and analyze LoRa performance as applied to a case study of an earthquake detection system in a high-rise building. The indication of the signal strength of the RSSI, quality of signal transmission with noise in the transmission of data information SNR, Delay in data transmission, and Packet Loss were some parameters assessed. LoRa communication technology on the earthquake detection system shows the performance to be able to send information data up to the 1st floor with a distance of 15 m in high-rise buildings when the LoRa gateway is on the 4th floor, but good signal conditions and a small percentage of packet loss can only be achieved up to the 2nd floor with a distance of 10 m with LoRa gateway, then send data packets at intervals fastest on a 1 s transmission speed, the signal is still good. There is only a 10% packet loss.