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Characterization of Spatial Consistency of Millimeter Wave Cluster Channel in Urban Environments
  • +2
  • Naoya Suzuki,
  • Hibiki Tsukada,
  • Riku Takahashi,
  • Banibrata Bag,
  • Minseok Kim
Naoya Suzuki
Hibiki Tsukada
Riku Takahashi
Banibrata Bag
Minseok Kim
Niigata University

Corresponding Author:[email protected]

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Currently, millimeter-wave (mm-wave) based wireless communications in the 30 to 300 GHz frequency band are attracting new attention because the existing frequency band below 6~GHz is very congested. In order to use the mm-wave bands for designing and assessing next-generation mobile systems, it is essential to characterize its propagation channel considering the spatial consistency (SC) for non-stationary user equipment in an outdoor environment. Since the mm-wave band has different characteristics from the microwave band, 3GPP has proposed an SC procedure that provides spatial correlation to clusters for beam-tracking evaluation in dynamic scenarios. However, this letter reports on the evaluation of SC of clusters in terms of cluster visible region based on the obtained measured data in two different mm-wave frequencies, 24 GHz and 60 GHz, in urban environments. The visible region is estimated by tracking the available clusters using the fourth-dimensional spatiotemporal multipath parameters: the departure/arrival angles (azimuth), delay time, and cluster power. The obtained visible regions for two different frequencies and scenarios are compared and confirmed the dependencies of SC of the clusters on frequency and environment.
2024Published in IEEE Antennas and Wireless Propagation Letters on pages 1-5. 10.1109/LAWP.2024.3363191