KSII Transactions on Internet and Information Systems (TIIS)

Korean Society for Internet Information (한국인터넷정보학회)
권호 표지
DOI QR코드

DOI QR Code

Handover based on Maximum Cell Residence Time and Adaptive TTT for LTE-R High-Speed Railways

  • Cho, Hanbyeog (Vehicle-IT Convergence Research Center, ETRI) ;
  • Han, Donghyuk (CTO SIC Center, LG Electronics) ;
  • Shin, Sungjin (SW Center, Samsung Electronics) ;
  • Cho, Hyoungjun (School of Electrical and Electronic Engineering, Yonsei University) ;
  • Lee, Changsung (School of Electrical and Electronic Engineering, Yonsei University) ;
  • Lim, Goeun (School of Electrical and Electronic Engineering, Yonsei University) ;
  • Kang, Mingoo (Department of Information Science and Telecommunication, Hanshin University) ;
  • Chung, Jong-Moon (School of Electrical and Electronic Engineering, Yonsei University)
  • Received : 2017.06.07
  • Accepted : 2017.08.15
  • Published : 2017.08.31
Download PDF
⟨ Previous Next ⟩

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.

Keywords

References

  1. International Union of Railways High Speed lines in the world, Apr. 2017.
  2. X. Zhengjie, "An Innovative Railway Wireless Communications System," ZTE Technologies, no. 11, Nov. 2010.
  3. C. D. Gavrilovich and Jr. G. C. Ware, "Broadband Communication on the Highways of Tomorrow," IEEE Commun. Mag., vol. 39, no. 4, pp. 146-154, Apr. 2001. https://doi.org/10.1109/35.917517
  4. Z. Liu and P. Fan, "An Effective Handover Scheme Based on Antenna Selection in Ground-Train Distributed Antenna Systems," IEEE Trans. Veh. Technol., vol. 63, no. 7, pp. 3342-50, Sept. 2014. https://doi.org/10.1109/TVT.2014.2300154
  5. O. Altrad, S. Muhaidat, and P. D. Yoo, "Doppler frequency estimation-based handover algorithm for long-term evolution networks," IET Networks., vol. 3, no. 2, pp. 88-96, June 2012. https://doi.org/10.1049/iet-net.2012.0224
  6. 3GPP TS 36.331 v12.3.0, Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol Specification (Release 12), Sept. 2014.
  7. TTAK.KO-06.0369, Functional Requirements for LTE based Railway Communication System, Oct. 2014.
  8. 3GPP TR 36.902 v9.3.1, Evolved Universal Terrestrial Radio Access Network (E-UTRAN); Self-Configuring and Self-Optimizing Network (SON) Use Cases and Solutions (Release 9), April 2011.
  9. 3GPP TS 36.423 v12.3.0, Evolved Universal Terrestrial Radio Access Network (E-UTRAN); X2 Application Protocol (X2AP) (Release 12), Sept. 2014.
  10. I. Joseph and C. C. Konyeha, "Urban Area Path loss Propagation Prediction and Optimization Using Hata Model at 800MHz," IOSR Journal of Applied Physics (IOSR-JAP), vol. 3, no. 4, pp. 8-18, Mar. 2013. https://doi.org/10.9790/4861-0340818
  11. L. Tian, J. Li, Y. Huang, J. Shi, and J. Zhou, "Seamless dual-link handover scheme in broad-band wireless communication systems for high-speed rail," IEEE J. Sel. Areas Commun., vol. 30, no. 4, pp. 708-718, May 2012. https://doi.org/10.1109/JSAC.2012.120505
  12. 3GPP TR 25.912 v11.0.0, Feasibility Study for Evolved Universal Terrestrial Radio Access (UTRA) and Universal Terrestrial Radio Access Network (UTRAN) (Release 13), Dec. 2015.
  13. D. Han, S. Shin, H. Cho, J.-M. Chung, D. Ok, and I. Hwang, "Measurement and stochastic modeling of handover delay and interruption time of smartphone real-time applications on LTE networks," IEEE Commun. Mag., vol. 53, no. 3, pp. 173-181, Mar. 2015. https://doi.org/10.1109/MCOM.2015.7060501