LoRa Path-Loss Model and Verification for Maritime Environment

Maritime communication faces the influence of many irresistible factors such as air pressure and waves, which leads to the degradation of the efficiency and quality of maritime communication, and increases the difficulty of channel modeling. In this paper, we conducted LoRa data testing, analyzed and simulated a LoRa path loss model for maritime environment, focusing on the influence of antenna height, sea surface roughness and other channel model parameters. According to the simulation results, it is concluded that changing the standard deviation of surface height distribution and the mean-square surface slope affects the influence of the reflection path on the large-scale fading. In addition, by appropriately increasing the antenna height on board, the communication coverage can be extended accordingly.