LTE-r handover point control scheme for high-speed railways

Hyoungjun Cho, Sungjin Shin, Goeun Lim, Changsung Lee, Jong Moon Chung

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

LTE-R is a new standard under development to serve future high-speed railway systems (HSRs) with reliable real-Time train control and management system support as well as passenger safety, convenience, and infotainment services. The QoS of LTE communications is significantly degraded in HSRs due to rapid channel variations that exceed the variation range of LTE systems, resulting in delayed handover or handover failure due to radio link failure. Therefore, a handover decision scheme optimized for HSRs to ensure the QoS requirements for communications is necessary. In this article, a new H2 scheme for HSRs is proposed, which improves the handover performance of high-speed moving LTE systems. The H2 scheme monitors the reference signal received power variation level of the serving evolved node B and handover target evolved node B to prevent late handover and stably execute handover in rapidly changing conditions. Simulation results demonstrate that the proposed H2 scheme can significantly lower the handover failure probability for HSRs compared to the handover schemes currently used in LTE.

Original languageEnglish
Article number8246853
Pages (from-to)112-119
Number of pages8
JournalIEEE Wireless Communications
Volume24
Issue number6
DOIs
Publication statusPublished - 2017 Dec

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Quality of service
Radio links
Communication

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering

Cite this

Cho, Hyoungjun ; Shin, Sungjin ; Lim, Goeun ; Lee, Changsung ; Chung, Jong Moon. / LTE-r handover point control scheme for high-speed railways. In: IEEE Wireless Communications. 2017 ; Vol. 24, No. 6. pp. 112-119.
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LTE-r handover point control scheme for high-speed railways. / Cho, Hyoungjun; Shin, Sungjin; Lim, Goeun; Lee, Changsung; Chung, Jong Moon.

In: IEEE Wireless Communications, Vol. 24, No. 6, 8246853, 12.2017, p. 112-119.

Research output: Contribution to journalArticle

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