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Appl. Sci. 2017, 7(2), 165; doi:10.3390/app7020165

Measurement and Analysis of Channel Characteristics in Reflective Environments at 3.6 GHz and 14.6 GHz

1
State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing 100044, China
2
Division of Electronics and Information Technology, National Institute of Metrology, Beijing 100013, China
3
Communications Technology Laboratory, National Institute of Standards and Technology, Boulder, CO 80303, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Dimitrios G. Aggelis
Received: 18 November 2016 / Revised: 23 January 2017 / Accepted: 3 February 2017 / Published: 13 February 2017
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Abstract

Recently, high frequency bands (above 6 GHz) have attracted more attention for the next generation communication systems due to the limited frequency resources below 6 GHz. To reveal the influence of frequency on propagation channels, channel characterization results at 14.6 and 3.6 GHz bands based on measurements in an indoor scenario and in a reverberation chamber are presented. The measurement results indicate minimal differences in path loss exponents, shadow fading standard deviation, root-mean-square (RMS) delay spread and coherence bandwidth for the two frequency bands, while the path loss at 14.6 GHz band is clearly larger than that at the 3.6 GHz band. Furthermore, the underlying factors that influence the channel characteristics are investigated. It is found that the RMS delay spread is independent of the frequency in the scenario where free space propagation and/or reflection are the main mechanisms. Measurements in the reverberation chamber verify this inference. View Full-Text
Keywords: propagation measurement; comparative analysis; indoor scenario; wideband characteristics; reverberation chamber propagation measurement; comparative analysis; indoor scenario; wideband characteristics; reverberation chamber
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Zhou, X.; Zhong, Z.; Bian, X.; He, R.; Sun, R.; Guan, K.; Liu, K.; Guo, X. Measurement and Analysis of Channel Characteristics in Reflective Environments at 3.6 GHz and 14.6 GHz. Appl. Sci. 2017, 7, 165.

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