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Conference Paper
Enhancement of Reliability and Availability for LTE-R based Train Control
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- Authors
- Byungsik Yoon, Sookjin Lee, Sangcheol Oh, Minsuk Choi, Sungchan Lee, Dongil Sung
- Issue Date
- 2022-10
- Citation
- International Conference on Information and Communication Technology Convergence (ICTC) 2022, pp.2274-2276
- Language
- English
- Type
- Conference Paper
- Project Code
- 22IH3100, Verification of Wireless Communication Infrastructure and Train Integrity for Automatic Train operation system, Byungsik Yoon
- Abstract
- The reliability and availability of wireless train communication are extremely important in safe and efficient train control. In this paper, we present an LTE-Railway (LTE-R) communication characteristics and performance based on real-time measuring radio frequency condition in Korea Train eXpress (KTX) train field test. We propose handover optimization method for increasing reliability of LTE-R network. We also introduce redundant railway communication scheme using LTE-R and commercial LTE networks for increasing availability of wireless train control system. Both proposals are analyzed and verified using OPNET network simulation. It has been shown that 17% reduction of handover delay and 13 times reduction of packet loss rate compare to the legacy LTE-R network system.
- KSP Keywords
- Field Test, Handover delay, Handover optimization, Increasing reliability, LTE network, LTE-Railway, Network system, Radio Frequency(RF), Real-Time, Reliability and Availability, Train control system