An Effective Handover Scheme Based on Antenna Selection in Ground–Train Distributed Antenna Systems

Due to frequent handovers in broadband wireless communications for the high-speed railway system, communication interruption caused by handover failures could seriously degrade the users' experience. Aiming at reducing the handover failure probability, this paper proposes an effective handover scheme based on the distributed antenna system (DAS) and mobile-relay-aided two-link architecture, i.e., ground–relay link and relay–onboard link, where the mobile relay is mounted on top of the moving train. In addition, an antenna selection scheme with optimal power allocation is proposed to improve handover performance. The simulation and analysis results show that the DAS structure with macrodiversity can reduce the unnecessary handovers, as well as reduce the handover failure and link outage probabilities compared with the traditional cell without DAS. In addition, the proposed DAS with an antenna selection scheme performs better in terms of handover failure and link outage probabilities than that of DAS with a equal power allocation (EPA) scheme.

• Record URL:
  • https://doi.org/10.1109/TVT.2014.2300154
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00189545
• Supplemental Notes:
  • Abstract reprinted with permission of IEEE.
• Authors:
  • Liu, Ziyue
  • Fan, Pingzhi
• Publication Date: 2014-7

Language

• English

Media Info

• Media Type: Web
• Pagination: pp 3342-3350
• Serial:
  • IEEE Transactions on Vehicular Technology
  • Volume: 63
  • Issue Number: 7
  • Publisher: Institute of Electrical and Electronics Engineers (IEEE)
  • ISSN: 0018-9545
  • Serial URL: http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=25

Subject/Index Terms

• TRT Terms: Antennas; Broadband; High speed ground transportation; Service disruption; Simulation; Wireless communication systems
• Subject Areas: Data and Information Technology; Railroads; Vehicles and Equipment; I90: Vehicles;

Filing Info

• Accession Number: 01541958
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 29 2014 11:21AM