Abstract
Smart Meter (SM) is a device that measures electrical energy and reports power consumption to the control center via communication systems, such as LoRaWAN (Long Range Wide Area Network). The antenna is a key component of wireless communication improvement. Moreover, unidirectional antenna radiates most power in desired direction. Design of wireless communication system requires accurate Path Loss (PL) model, which predicts the losses in channels. In this paper, we propose a new PL model using the empirical method in an urban area of Thailand. Also, PL model is designed to SM scenario via LoRaWAN at frequency of 920-925 MHz. That model can estimate real measured PL accurately. Likewise, proposed model is more correctly than the Okumura-Hata model, which was evaluated by the Root Mean Square Error (RMSE) and the R-square.
Published Version
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