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Wideband Millimeter-Wave Channel Characterization in an Open Office at 26 GHz

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Abstract

Based on the newest frequency allocation for the fifth generation (5G) radio systems at 26 GHz millimeter wave band by the World Radio Communications Conference, this paper investigates the wideband channel properties by measurements carried out in the LOS and NLOS environments at 26 GHz with 1 GHz bandwidth in an open office at KeySight Beijing, China, which is a representative of an indoor hotspot scenario. In the time domain measurements, an omni-directional biconical horn is used at the transmitter, while at the receiver a 24.3 dBi horn is applied and rotated with 5° angular step in the whole azimuth plane, and from −20° to 30° in the elevation plane with 10° angular step. In the work, two kinds of path-loss models are developed, namely directional and omni-directional models by using close-in and float intercept methods. The directional path-loss model is useful for adopting beamforming techniques. The large scale channel parameters such as the shadow fading, root mean square (RMS) delay spread, RMS angular spread in the azimuth and elevation planes, Ricean K-factor, number of clusters and their correlations are investigated for the fifth generation (5G) link and system level simulations. A new method for extracting number of clusters is proposed to find the peak power within a sliding window. The power angular profiles are employed at the measurement locations for propagation mechanisms studies. We believe that the newest results in this work are useful in the simulations and planning for future 5G radio systems at 26 GHz.

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Acknowledgements

This work is supported by China Academy of Telecommunication Technology (CATT), and the open research fund of National Mobile Communications Research Laboratory, Southeast University (No. 2016D09). Thanks Mr. Zhu Wen, Fei Cao and Tiansheng Zhang from KeySight, Beijing for their great help in doing the measurements.

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Authors and Affiliations

  1. School of Electrical and Electronic Engineering, North China Electric Power University, Beijing, 102206, China

    Xiongwen Zhao, Qi Wang & Shu Li

  2. Datang Wireless Mobile Innovation Center of the China Academy of Telecommunication Technology (CATT), Beijing, 100191, China

    Mengjun Wang & Shaohui Sun

Authors
  1. Xiongwen Zhao
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  2. Qi Wang
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  3. Shu Li
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  4. Mengjun Wang
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  5. Shaohui Sun
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Correspondence to Xiongwen Zhao.

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Zhao, X., Wang, Q., Li, S. et al. Wideband Millimeter-Wave Channel Characterization in an Open Office at 26 GHz. Wireless Pers Commun 97, 5059–5075 (2017). https://doi.org/10.1007/s11277-017-4765-3

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  • DOI: https://doi.org/10.1007/s11277-017-4765-3

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