Single ray tracking algorithm may cause significant performance deterioration in millimeter-wave (mmWave) channels with a cluster of indistinguishable multiple paths, especially in multiuser scenarios. By expressing the clustered channel vector as the Hadamard product of a time-varying cluster central path channel vector (CCPCV) and an intra-cluster structure vector (ICSV), an algorithm of jointly tracking the cluster central path and the ICSV is proposed in this letter. Numerical results show that our algorithm can substantially reduce the tracking error and improve the spectral efficiency compared with existing tracking methods.

中文翻译：

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跟踪MmWave多用户移动通信的群集信道

单射线跟踪算法可能会导致毫米波（mmWave）通道中具有无法区分的多条路径的群集，从而导致性能显着下降，尤其是在多用户方案中。通过将聚类通道矢量表示为时变聚类中心路径通道矢量（CCPCV）和聚类内部结构矢量（ICSV）的Hadamard乘积，提出了一种联合跟踪聚类中心路径和ICSV的算法信件。数值结果表明，与现有的跟踪方法相比，该算法可以大大减少跟踪误差，提高频谱效率。