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首页> 外文会议>IEEE International symposium on Personal, Indoor, and Mobile Radio Communications >Performance assessment of 5G-candidate waveforms in high speed scenarios
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Performance assessment of 5G-candidate waveforms in high speed scenarios

机译：高速场景下5G候选波形的性能评估

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The radio access technology for railway communications is expected to migrate from GSM for Railways (GSM-R) to a more suitable generation of communication systems for the services offered nowadays, like the fourth generation (4G) or the fifth generation (5G) ones. Moreover, taking into account the evolution of general-purpose communication standards and devices, 5G systems seem to be good candidates to substitute GSM-R as the basis technology for railway communications in the long term. Recently, considerable attention has been devoted to high-speed trains since this particular environment poses challenging problems in terms of performance simulation and measurement. In order to considerably decrease the cost and complexity of high-speed measurement campaigns, we have proposed a technique to induce effects caused by highly-time varying channels on multicarrier signals while conducting measurements at low speeds. This technique has been proved to be accurate for the cases of WiMAX and Long Term Evolution (LTE) signals, as well as the waveforms proposed for 5G systems, such as Filter Bank Multicarrier (FBMC). In this work, we employ the technique to evaluate experimentally the performance of modulation schemes proposed for 5G systems at high speeds. More specifically, we compare the performance obtained by transmitting FBMC schemes with two different prototype filters at different velocities up to 500 km/h. We also include the results obtained for Orthogonal Frequency-Division Multiplexing (OFDM) signals for comparison purposes.
机译：预计用于铁路通信的无线电接入技术将从铁路专用GSM（GSM-R）过渡到更适合用于当今提供的服务的一代通信系统，例如第四代（4G）或第五代（5G）。此外，考虑到通用通信标准和设备的发展，从长远来看，5G系统似乎是替代GSM-R作为铁路通信基础技术的不错选择。近来，由于这种特殊的环境在性能模拟和测量方面提出了具有挑战性的问题，因此人们对高速列车投入了大量关注。为了显着降低高速测量活动的成本和复杂性，我们提出了一种在低速执行测量时，在多载波信号上引入由高时变化信道引起的影响的技术。事实证明，该技术对于WiMAX和长期演进（LTE）信号以及为5G系统（如滤波器组多载波（FBMC））建议的波形是准确的。在这项工作中，我们采用了这项技术，以实验方式评估了针对5G系统高速提出的调制方案的性能。更具体地说，我们比较了通过以两个不同的原型滤波器以高达500 km / h的速度传输FBMC方案而获得的性能。为了进行比较，我们还包括正交频分复用（OFDM）信号获得的结果。

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