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

机译:具有电视空白的启用高速列车宽带网络的可行性

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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在火车上实现高速热点和数据分载的潜在用途。我们提出一种系统,其中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,我们对各种现实情况和依赖LTE技术的辅助系统配置进行了性能分析。我们的分析表明,在所有考虑的情况下,每列火车都可以实现超过20 Mbps的可持续数据速率,并且针对次级系统的授权共享访问而提出的修改后的频谱策略将产生接近通用的覆盖范围。结果表明,通过使用未使用的电视频率,可以为国家高速火车网络提供具有成本效益的宽带连接。

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