| 高速客运通信系统中的动态资源预留 |
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| 引用本文： | 柴蓉,唐伦,肖敏,陈前斌.高速客运通信系统中的动态资源预留[J].电信科学,2009,25(10). |
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| 作者姓名： | 柴蓉 唐伦 肖敏 陈前斌 |
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| 作者单位： | 重庆邮电大学,重庆,400065 |
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| 基金项目： | 重庆市科委自然基金资助项目(No.8477).重庆市新世纪优秀人才支持计划基金资助项目(No.NCET-06-0778).国家科技重大专项基金资助项目，重庆市自然科学基金资助项目 |
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| 摘 要： | 针对高速客运系统中用户频繁切换产生的大量资源开销,引入了组移动性概念,通过设置列车中继站,实现了车内用户的单用户切换方式.同时,针对大量用户同时切换至目标基站导致的基站拥塞,提出了基于基站协作的动态资源预留方案.即当前基站根据列车运行状态信息提前获知切换目标基站,并通告其资源需求,使其为车内用户预留资源.仿真结果表明列车业务量对系统性能产生了严重影响,采用动态资源预留方案,可以有效地提高列车用户的通信性能.
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| 关 键 词： | 蜂窝通信 中继站 基站协作 资源预留 |
Dynamic Resource Reservation in High-Speed Transportation Communication System |
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| Chai Rong,Tang Lun,Xiao Min,Chen Qianbin.Dynamic Resource Reservation in High-Speed Transportation Communication System[J].Telecommunications Science,2009,25(10). |
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| Authors: | Chai Rong Tang Lun Xiao Min Chen Qianbin |
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| Affiliation: | Chai Rong,Tang Lun,Xiao Min,Chen Qianbin (Chongqing University of Posts and Telecommunications,Chongqing 400065,China) |
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| Abstract: | To solve the performance deterioration problem of cellular system under high mobility,the application of a train relay station which performs single-user handoff scheme is proposed. Moreover,a dynamic resource reservation scheme based on base station cooperation is presented. Current base station obtains the information of destination base station based on train state information and notifies it to reserve resource for train users. Simulation results show that train communication load affects system perform... |
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| Keywords: | cellular communication relay station base station cooperation resource reservation |
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