Design of a Multi-Standard UWB-LoRa Antenna Structure and Transceiver Board for High-Accuracy and Long-Range Localization Applications

Abstract

Long-Range Wide-Area Networks (LoRaWAN) allow the transmission of data via radio link from sensors, which are potentially isolated or difficult to access, to gateways and servers that are connected to cellular networks for data processing, exchange, or relay, with low transmission power. This concept employs Long-Range (LoRa) modulation and has led to the emergence of many applications for the monitoring and tracking of objects. However, due to its characteristic of a low data rate for low-power communication, the transmission of information with LoRa technology is not suitable for the fast real-time monitoring of data. Additionally, due to its narrow bandwidth, an attempt to perform localization through the LoRa modulation technique will result in very limited accuracy because of its inability to resolve multipath problems. Thus, in this paper, we propose a multi-standard Ultra-Wide Bandwidth (UWB) and LoRa end-device that is capable of measuring location with high accuracy using UWB technology and then transmitting the location information through LoRa method to gateways and the Internet of Things Network. The results of measurements in indoor and outdoor scenarios show a UWB localization accuracy that is of sub-meter level, being between 10 and 33 cm, and a UWB range of 124 m in Line-of-Sight (LOS) and 55 m in Non-Line-of-Sight (NLOS) applications, respectively.

Development of Self-generated and LPWA-based Crop Growth Environment Monitoring and Bigdata Analysis System

“…LPWA services currently available include NB-IoT (Narrowband IoT), LoRa WAN provided by the LoRa alliance, and LTE-M (Long Term Evolution for Machines). The following table shows the LPWA technologies of NB-IoT, LTE-M, and LoRa WAN [12][13][14][15][16][17][18]. NB-IoT uses licensed bands, and although the transmission speed is relatively slow, it has good coverage and power consumption.…”

Advancements in Industrial RTLSs: A Technical Review of UWB Localization Devices Emphasizing Antennas for Enhanced Accuracy and Range

“…RTLSs performing time-based localization with UWB technology have subsequently been deployed in many applications, such as the monitoring of equipment and staff in healthcare [12][13][14], monitoring of vehicles [15,16] and secure access with UWB-based car keys [17], monitoring in underground mines [18][19][20], monitoring in robotics [21], monitoring of long-range wide area network (LoRaWAN) sensors [22], and the monitoring of athletic performance data in sports [23][24][25].…”