In this letter, we consider the high-mobility wireless communications between a high speed train (HST) and a base station (BS) and propose a beamforming scheme with Doppler suppression for the stationary node BS. The typical Rician channel model is assumed, which occupies most of the HST communication scenarios. Based on the fact that the channel time-variation induces interference to the standard time-invariant signal model, the beamforming is then designed to maximize the signal-to-interference-plus-noise ratio (SINR) for both uplink and downlink transmissions. Simulation results are provided to verify that the channel time-variation can be effectively suppressed by the stationary BS through the proposed beamforming scheme.

中文翻译：

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用于高移动性无线通信的具有多普勒抑制的波束成形方案

在这封信中，我们考虑了高速列车 (HST) 和基站 (BS) 之间的高移动性无线通信，并为固定节点 BS 提出了具有多普勒抑制的波束成形方案。假设典型的 Rician 信道模型，它占据了大部分 HST 通信场景。基于信道时变会对标准时不变信号模型产生干扰这一事实，然后设计波束成形以最大化上行链路和下行链路传输的信号干扰加噪声比 (SINR)。仿真结果验证了信道时变可以通过所提出的波束成形方案被静止 BS 有效抑制。