An Optimized Fast Handover Scheme Based on Distributed Antenna System for High-Speed Railway

W. Ali, Junyuan Wang, Huiling Zhu, Jiangzhou Wang
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引用次数: 1

Abstract

High-speed trains have become one of the most leading transportation means, where each year the manufacture companies reach a new speed record. This progressive speed records increase the handover (HO) rate which makes it very difficult for high speed railway (HSR) mobile communication to sustain a reliable communication link. Utilizing distributed antenna systems (DASs) along with the two-hop architecture, this paper analyzes the conventional handover scheme based on this architecture and proposes a faster HO strategy. The proposed scheme reduces the HO latency and failure probability which could greatly improve the end-users quality of services (QoS). The analytical results show that the proposed scheme performs better than the conventional HO scheme.
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基于分布式天线系统的高速铁路快速切换优化方案
高速列车已经成为最主要的交通工具之一,每年制造公司都达到新的速度记录。这种渐进式速度记录增加了切换率,使得高速铁路移动通信难以维持可靠的通信链路。利用两跳结构的分布式天线系统(das),分析了基于该结构的传统切换方案,提出了一种更快的HO策略。该方案降低了HO延迟和故障概率,极大地提高了终端用户的服务质量(QoS)。分析结果表明,该方案优于传统的HO方案。
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