March 2024
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10 Reads
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2 Citations
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March 2024
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10 Reads
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2 Citations
December 2017
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140 Reads
IEICE Transactions on Communications
The fifth generation (5G) system using millimeter waves is considered for application to high tra c areas with a dense population of pedestrians. In such an environment, the e ects of shadowing and scattering of radio waves by human bodies (HBs) on propagation channels cannot be ignored. In this paper, we clarify based on measurement the characteristics of waves scattered by the HB for typical non-line-of-sight scenarios in street canyon environments. In these scenarios, there are street intersections with pedestrians, and the angles that are formed by the transmission point, HB, and reception point are nearly equal to 90 degrees. We use a wide-band channel sounder for the 67-GHz band with a 1-GHz bandwidth and horn antennas in the measurements. The distance parameter between antennas and the HB is changed in the measurements. Moreover, the direction of the HB is changed from 0 to 360 degrees. The evaluation results show that the radar cross section (RCS) of the HB fluctuates randomly over the range of approximately 20 dB. Moreover, the distribution of the RCS of the HB is a Gaussian distribution with a mean value of -9.4 dBsm and the standard deviation of 4.2 dBsm. Copyright © 2018 The Institute of Electronics, Information and Communication Engineers
... The authors of [17] developed a sub-THz massive multipleinput multiple-output (MIMO) channel sounder using 896 antenna elements, offering a high time-spatial channel resolution. The developed channel sounder could determine how many pathways arrived with a lower received power in real time. ...
March 2024