An optimized relay handover algorithm in TD-LTE along high-speed railway

Dewei Deng, Muqing Wu, Ziqing Chen
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引用次数: 2

Abstract

Handover (HO) is one of the key procedures, which ensures user equipment (UE) moving smoothly in long term evolution (LTE) systems. Generally, hard handover has a high outage probability and is relatively simple, but when the velocity of UE is high, the procedure may be unreliable, especially for VoIP service. In the special scenario high-speed railway, network deployment is known and an optimized relay algorithm could be applied according to information already known, such as cell deployment and direction of UE running. Simulation results show that algorithm proposed performs better than the traditional hard handover in high-speed railway networks.
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高速铁路TD-LTE中继切换优化算法
在长期演进(LTE)系统中,切换是保证用户设备(UE)平稳运行的关键环节之一。一般情况下,硬切换的中断概率高,操作相对简单,但当UE的速度较高时,过程可能不可靠,特别是对于VoIP业务。在高铁特殊场景下,网络部署是已知的,可以根据已知的蜂窝部署、终端运行方向等信息,应用优化的中继算法。仿真结果表明,该算法在高速铁路网中的性能优于传统的硬切换。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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