论文标题
迈向定位的现实统计渠道模型：评估早期集群的影响
Towards Realistic Statistical Channel Models For Positioning: Evaluating the Impact of Early Clusters
论文作者
论文摘要
诸如反射，折射和衍射之类的物理效应会导致无线电信号从发射器到达具有不同振幅和旋转的多个复制品的接收器。带宽受限信号（例如定位参考信号）的时间分辨率有限。实际上，信号通常反映在发射机和接收器的近距离附近，这会导致观察到的峰位移，这是根据发射机和接收器之间的视线（LOS）几何形状从预期的真实峰的位移。在本文中，我们表明，在3GPP内指定的用于性能评估的现有渠道模型无法对上述现象进行建模。结果，仿真结果显着偏离了测量值。基于我们的测量和仿真结果，我们提出了一个模型，用于通过发射机或接收器附近的障碍物结合信号反射，以使模型的结果对应于这种情况下的测量。
Physical effects such as reflection, refraction, and diffraction cause a radio signal to arrive from a transmitter to a receiver in multiple replicas that have different amplitude and rotation. Bandwidth-limited signals, such as positioning reference signals, have a limited time resolution. In reality, the signal is often reflected in the close vicinity of a transmitter and receiver, which causes the displacement of the observed peak from the true peak expected according to the line of sight (LOS) geometry between the transmitter and receiver. In this paper, we show that the existing channel model specified for performance evaluation within 3GPP fails to model the above phenomena. As a result, the simulation results deviate significantly from the measured values. Based on our measurement and simulation results, we propose a model for incorporating the signal reflection by obstacles in the vicinity of transmitter or receiver, so that the outcome of the model corresponds to the measurement made in such scenario.
