| 分布式天线系统中的天线位置优化 |
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| 引用本文： | 胡钰林,邱玲.分布式天线系统中的天线位置优化[J].中国科学技术大学学报,2009,39(10). |
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| 作者姓名： | 胡钰林 邱玲 |
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| 作者单位： | 中国科学技术大学个人通信与扩频实验室,安徽合肥,230027 |
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| 基金项目： | 国家科技重大专项，中国瑞典第四代及超前无线通信技术战略合作项目 |
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| 摘 要： | 分布式天线系统(DAS)的天线位置直接决定着系统无线覆盖的可靠性和高效性性能.讨论如何在满足用户通信质量需求的前提下,通过优化天线位置来提高天线效率,使系统更加绿色.首先推导了DAS基于无线覆盖可靠性和高效性的天线效率公式,并提出基于这两种天线效率的相应天线位置优化方法.分析和仿真结果表明,通过优化天线位置,可以减少小区内的天线数目或最小化其平均最小接入距离,以提高天线效率、最小化系统总发射功率和降低布网成本.
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| 关 键 词： | 分布式天线系统 虚拟小区 天线位置优化 接入距离 |
Optimal antenna location for distributed antennas in DAS cells |
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| HU Yu-lin,QIU Ling.Optimal antenna location for distributed antennas in DAS cells[J].Journal of University of Science and Technology of China,2009,39(10). |
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| Authors: | HU Yu-lin QIU Ling |
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| Abstract: | The antenna location of the distributed antenna system (DAS) determines the system's performance. Under the condition of satisfying the users' needs for QoS, the DAS antenna efficiency was first defined and then different methods were adopted to optimize the antenna position so as to reduce the number of antennas and/or minimize the average minimum access distance, thus improving the antenna efficiency and ultimately reducing the cost and the total transmission power of the system. The analysis and simulation results show that the methods have achieved excellent performance. |
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| Keywords: | DAS virtual cell optimal antenna location access distance |
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