| GSM-R网络中共享中继增强型切换机制 |
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| 引用本文： | 方旭明,杨崇哲,陆玲辉,邸成.GSM-R网络中共享中继增强型切换机制[J].交通运输工程学报,2011(2):108-113. |
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| 作者姓名： | 方旭明 杨崇哲 陆玲辉 邸成 |
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| 作者单位： | 西南交通大学信息编码与传输四川省重点实验室;北京交通大学轨道交通控制与安全国家重点实验室; |
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| 基金项目： | National Natural Science Foundation of China(61032002); Key Research Plan of MOR of China(2009X009-E); Research Foundation of State Key Laboratory of Rail Traffic Control and Satety(RCS2008K002) |
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| 摘 要： | 为了提高GSM-R系统的切换成功率,设计了一种共享中继增强型切换机制,利用共享中继改善相邻基站重叠区内来自目标基站的信号质量,明显区分不同基站的信号,减少信号波动导致的切换误判.仿真结果表明:利用增强型切换机制将列车的切换触发地点提前约500 m,从而保证列车在重叠区内具有足够的距离完成切换,并且由于信号质量的改善,减...
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| 关 键 词： | 车地无线通信 信号传输质量 铁路综合移动数字通信系统 共享中继 干扰 切换成功率 |
Enhanced handover scheme with shared-relay stations in GSM-R network |
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| FANG Xu-ming,YANG Chong-zhe,LU Ling-hui,DI Cheng.Enhanced handover scheme with shared-relay stations in GSM-R network[J].Journal of Traffic and Transportation Engineering,2011(2):108-113. |
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| Authors: | FANG Xu-ming YANG Chong-zhe LU Ling-hui DI Cheng |
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| Institution: | FANG Xu-ming1,2,YANG Chong-zhe1,LU Ling-hui1,DI Cheng1(1.Key Laboratory of Information Coding and Transmissions of Sichuan Province,Southwest Jiaotong University,Chengdu 610031,Sichuan,China,2.State Key Laboratory of Rail Traffic Control and Safety,Beijing Jiaotong University,Beijing 100044,China) |
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| Abstract: | In order to improve the successful handover probability of GSM-R(GSM for railway) system,an enhanced handover scheme with shared-relay stations was put forward.In the scheme,shared-relay stations were applied to improve the signal quality of target base stations in the signal overlapping region among adjacent base stations and to separate the received mixed signals from different base stations,which could decrease the handover misjudgment resulted from signal fluctuation.Simulation result shows that the sch... |
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| Keywords: | train-ground wireless communication signal transmission quality GSM-R shared-relay station interference successful handover probability |
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