论文标题
移动毫米波网络中的位置辅助波束形成
Location-Aided Beamforming in Mobile Millimeter-Wave Networks
论文作者
论文摘要
由于可用的带宽大，毫米波（MMWAVE）频段被认为是可行的机会，可以显着提高细胞和无线网络的数据速率。然而，发射机和接收器之间对横梁形成和方向通信的需求增加了通道估计和链路建立阶段的复杂性。位置辅助的波束形成方法有可能在MMWave网络中实现快速链接建立。但是，这些通常对位置错误非常敏感。在这项工作中，我们根据跟踪发射机和接收器之间可用的强路的空间相关性提出了一种波束形成算法。我们表明，我们的方法对位置信息（即位置错误）的不确定性很强，并且可以向移动用户沿轨迹提供可靠的连接。数值结果表明，我们的方法在位置信息准确性上的各种错误级别上都优于基准。在高位置错误方案中，增益更为突出。
Due to the large bandwidth available, millimeter-Wave (mmWave) bands are considered a viable opportunity to significantly increase the data rate in cellular and wireless networks. Nevertheless, the need for beamforming and directional communication between the transmitter and the receiver increases the complexity of the channel estimation and link establishment phase. Location-aided beamforming approaches have the potential to enable fast link establishment in mmWave networks. However, these are often very sensitive to location errors. In this work, we propose a beamforming algorithm based on tracking spatial correlation of the available strong paths between the transmitter and the receiver. We show that our method is robust to uncertainty in location information, i.e., location error and can provide a reliable connection to a moving user along a trajectory. The numerical results show that our approach outperforms benchmarks on various levels of error in the location information accuracy. The gain is more prominent in high location error scenarios.
