RT info:eu-repo/semantics/article
T1 Effects of Body Shadowing in LoRa Localization Systems
A1 Marquez, Luz E.
A1 Calle, Maria
A1 Bahillo Martínez, Alfonso
A1 Miguel Jiménez, Ignacio de
K1 Body obstruction
K1 Localization
K1 LoRaWAN
K1 RSSI
K1 Environmental sensor
AB Applications where a person carries environmental sensors benefit from knowing the position ofthe individual. Researchers can locate the device by analyzing the radio signals used for sending information.However, it is necessary to know the impact of body obstruction on communication links and, therefore,on the localization system. The paper studies this impact by using field tests employing one LoRa node withan omnidirectional antenna in an outdoor parking lot with vegetation. The tests use four LoRa gatewayslocated in the corners of the area to measure the signals with and without body obstruction. The node waslocated on the subject’s chest to maximize signal obstruction. Results show that signal strength decreases byan average of 3 dB on links with body shadowing. Additionally, the study uses these signals with machinelearning and Kalman filter localization algorithms. Finally, the results show that body shadowing affectslocation accuracy in most methods. These results are useful for IoT researchers that need to locate peoplecarrying LoRaWAN devices but cannot use GPS/GNSS due to energy constraints.
PB Institute of Electrical and Electronics Engineers
SN 2169-3536
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/62166
UL https://uvadoc.uva.es/handle/10324/62166
LA eng
NO IEEE Access, 2023, vol. 11, pp. 9521-9528
NO Producción Científica
DS UVaDOC
RD 16-may-2024