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http://dx.doi.org/10.6109/jkiice.2020.24.9.1172

A study on the reliability and availability improvement of wireless communication in the LTE-R  

Choi, Min-Suk (Communications&Media Research Lab, ETRI)
Oh, Sang-Chul (Communications&Media Research Lab, ETRI)
Lee, Sook-Jin (Communications&Media Research Lab, ETRI)
Yoon, Byung-Sik (Communications&Media Research Lab, ETRI)
Kim, Dong-Joon (Technology Research Division, KR Network)
Sung, Dong-Il (Technology Research Division, KR Network)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.24, no.9, 2020 , pp. 1172-1179 More about this Journal
Abstract
With the establishment of the railway integrated radio network (LTE-R) environment, radio-based train control transmission and reception and various forms of service are provided. The smooth delivery of these services requires improved performance in a highly reliable and available wireless environment. This paper measured the LTE-R radio communication environment to improve radio communication performance of railway integrated wireless network reliability and availability, analyzed the results, and established the wireless environment model. Based on the built-up model, we also proposed an improved radio-access algorithm to control trains for improved reliability, suggesting a way to improve stability for handover that occur during open-air operation, and proposed an algorithm for frequency auto-heating to improve availability. For simulation, data were collected from the Korea Rail Network Authority (Daejeon), Manjong-Gangneung KTX route, which can measure the actual data of LTE-R wireless environment, and the results of the simulation show performance improvement through algorithm.
Keywords
LTE-R; Reliability; Availability; Simulation Model;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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