ETRI-Knowledge Sharing Plaform

KOREAN
논문 검색
Type SCI
Year ~ Keyword

Detail

Journal Article Handover based on Maximum Cell Residence Time and Adaptive TTT for LTE-R High-Speed Railways
Cited 3 time in scopus Download 4 time Share share facebook twitter linkedin kakaostory
Authors
Hanbyeog Cho, Donghyuk Han, Sungjin Shin, Hyoungjun Cho, Changsung Lee, Goeun Lim, Mingoo Kang, Jong-Moon Chung
Issue Date
2017-08
Citation
KSII Transactions on Internet and Information Systems, v.11, no.8, pp.4061-4076
ISSN
1976-7277
Publisher
한국인터넷정보학회
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.3837/tiis.2017.08.017
Project Code
17GS1100, Standardization of radio communication networks for conventional and high speed railway , Cho Han Byeog
Abstract
With the development of high-speed railway technologies, train velocities can now reach speeds up to 350 km/h, and higher in the future. In high-speed railway systems (HSRs), loss of communication can result in serious accidents, especially when the train is controlled through wireless communications. For to this reason, operators of Long Term Evolution for Railway (LTE-R) communication systems install eNodeBs (eNBs) with high density to achieve highly reliable communications. However, densely located eNBs can result in unnecessary frequent handovers (HOs) resulting in instability because, during every HO process, there is a period of time in which the communication link is disconnected. To solve this problem, in this paper, an HO scheme based on the maximum cell residence time (CRT) and adaptive time to trigger (aTTT), which are collectively called CaT, is proposed to reduce unnecessary HOs (using CRT estimations) and decrease HO failures by improving the handover command transmission point (HCTP) in LTE-R HSR communications.
KSP Keywords
Cell residence time, Communication link, Communication system, High-density, LTE-R, Long term Evolution(LTE), Railway system, command transmission, high-speed railway, highly reliable, time to trigger(TTT)