Self-optimization of handover parameters for long-term evolution with dual wireless mobile relay nodes

Battulga Davaasambuu*, Keping Yu, Takuro Sato

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


In recent years, train passengers have been transferring increasing amounts of data using mobile devices. Wireless networks with mobile relay nodes support broadband wireless communications for passengers of such vehicles using backhaul links. However, the mobility management entity reuses the handover of existing user equipment, resulting in the handover of the Long-Term Evolution network being unsuitable for user equipment within the cabins of vehicles traveling at high speed. In this paper, we propose a self-optimizing handover hysteresis scheme with dual mobile relay nodes for wireless networks in high-speed mobile environments. The proposed mechanism tunes the hysteresis and cell individual offset handover parameters based on the velocity of the vehicle and the handover performance indicator, which affects the handover triggering decision and performance. The results of simulations conducted in which the performance of the proposed scheme was compared to that of an existing scheme show that the proposed scheme can reduce the number of radio link failures and service interruptions during handover procedures.

Original languageEnglish
Pages (from-to)196-213
Number of pages18
JournalFuture Internet
Issue number2
Publication statusPublished - 2015


  • Cell individual offset
  • Handover parameter
  • Hysteresis
  • Mobile relay node
  • Self-optimization

ASJC Scopus subject areas

  • Computer Networks and Communications


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