Modeling Multi-frequency Characteristics for Classroom and Hall Scenarios at 2-4, 9-11 and 27-29 GHz Bands

Guojin Zhang, Jesper Ødum Nielsen, Xuesong Cai, Saito Kentaro , Panawit Hanpinitsak, Jun-ichi Takada, Gert Frølund Pedersen, Wei Fan

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Abstract

This paper investigates the wideband channel characteristics obtained in a classroom and a hall indoor scenarios at 2-4, 9-11 and 27-29GHz. A virtual uniform circular array (UCA) based channel sounding system was utilized to capture wideband spatial channel characteristics. The propagation parameters of multipath components (MPCs) were estimated by using a high resolution parameter estimation (HRPE) algorithm. The estimated MPCs are further grouped into clusters via a novel clustering identification algorithm based on the KPowerMeans algorithm. The comparison of the composite and cluster-level characteristics at multiple frequency bands in both scenarios is investigated. Moreover, the impact of the indoor room environment, i.e. dimension and furniture, on the propagation channel is also analyzed. The statistics of channel parameters at multiple frequency bands extracted constitute a stochastic clustered spatial channel model.

Original languageEnglish
Article number9328091
JournalIEEE Access
Volume9
Pages (from-to)14549-14563
Number of pages15
ISSN2169-3536
DOIs
Publication statusPublished - 12 Jan 2021

Keywords

  • Multi-frequency bands propagation
  • channel estimation
  • channel measurement
  • channel sounding
  • clustering

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