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Feasibility of a TV whitespaces enabled broadband network for high-speed trains

机译:电视空白的可行性使能高速列车的宽带网络

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In this paper we analyze the potential use of underutilized TV frequencies to enable high-speed hotspots and data offloading in trains. We propose a system where the hotspots connect via TV frequencies to base stations that are located at the train stations. Using data from the railway network of Germany and detailed spectrum availability information we carry out a performance analysis for various realistic scenarios and configurations of a secondary system that relies on LTE technologies. Our analysis shows that sustainable data rates beyond 20 Mbps per train can be achieved in all considered scenarios, and that a proposed modified spectrum policy for authorized shared access of the secondary system will yield near-universal coverage. The results show that it would be possible to provide cost-efficient broadband connectivity for a national high-speed train network by using unused TV frequencies.
机译:在本文中,我们分析了未充分利用的电视频率的潜在使用,使高速热点和列车中的数据卸载。 我们提出了一个系统,热点通过电视频率连接到位于火车站的基站。 使用来自德国铁路网络的数据和详细的频谱可用性信息,我们对依赖于LTE技术的辅助系统的各种现实方案和配置进行了性能分析。 我们的分析表明,在所有考虑的场景中可以实现超过20 Mbps的可持续数据税率,并且辅助分享访问的辅助应用程序的建议的频谱策略将产生近乎通用的覆盖范围。 结果表明,通过使用未使用的电视频率,可以为国家高速列车网络提供成本有效的宽带连接。

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