Reducing Costs of LIPA Handover Through Bearer Reservation with Preemption

Chih Hao Lai, Hui Ling Chang, Meng Hsun Tsai, Chia Ying Lin

研究成果: Article同行評審

摘要

In long-term evolution-advanced (LTE-Advanced) networks, a local IP access (LIPA) mechanism allows packets to be routed locally between home eNodeBs (HeNBs) without being passed back to the core network. When a user equipment (UE) communicates with another UE through LIPA and hands over to an eNodeB (eNB), lots of unnecessary message exchanges are required to release and reestablish bearers between HeNB and eNB. To reduce the handover costs, we propose a bearer reservation with preemption (BRP) scheme to reserve bearers instead of releasing bearers for handover sessions. To ensure that normal sessions are not affected by the reserved bearers, the reserved bearers are preemptible by normal sessions. Results of performance evaluation show that, in most cases, more than 50% of message exchanges can be reduced by the BRP scheme.

原文English
文章編號7801973
頁(從 - 到)6428-6438
頁數11
期刊IEEE Transactions on Vehicular Technology
66
發行號7
DOIs
出版狀態Published - 2017 7月

All Science Journal Classification (ASJC) codes

  • 航空工程
  • 電氣與電子工程
  • 電腦網路與通信
  • 汽車工程

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