TY  - JOUR
T1  - Design and Implementation of a UWB-Based Distance Information Provisioning System for Urban Transit
AU  - Han, Jonghun 
AU  - Han, Min-Ho 
AU  - Kim, Jinsu 
AU  - Ko, Young-Bae 
JO  - The Journal of Korean Institute of Communications and Information Sciences
PY  - 2024
DA  - 2024/1/1
DO  - 10.7840/kics.2024.49.3.444
KW  - Urban Transit
KW  - UWB
KW  - Train
KW  - Ranging
AB  - This study presents a development of a UWB-based distance information provisioning system for use in challenging GPS-denied environments, such as metro or urban transit systems. The primary objective of this system is to enhance the reliability of UWB communication and transmit real-time distance values between trains and surrounding anchors to a central server. To achieve this goal, the system incorporates SS-TWR scheduling and ranging scheduling, significantly improving system stability. Experimental validation conducted in a scaled-down urban transit environment demonstrates the high reliability of the developed system. The results of this research are expected to expand the potential applications of train location-based services in the environments comprised of underground tunnels, providing a foundation for practical implementation.