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http://dx.doi.org/10.7471/ikeee.2022.26.1.89

Path loss analysis of W-band using random forest  

Cho, Yeongi (Dept. of Electronic Engineering, Hanbat National University)
Kim, Kichul (Defense Space Technology Center, Agency for Defense Development)
Park, Juman (Defense Space Technology Center, Agency for Defense Development)
Choi, Jeong Won (Defense Space Technology Center, Agency for Defense Development)
Jo, Han-Shin (Dept. of Electronic Engineering, Hanbat National University)
Publication Information
Journal of IKEEE / v.26, no.1, 2022 , pp. 89-94 More about this Journal
Abstract
The W-band (75-110GHz) is a band that can utilize at least 10 times more bandwidth than the existing 5G band. Therefore, it is one of the bands suitable for future mobile communication that requires high speed and low latency, such as virtual and augmented reality. However, since the wavelength is short, it has a high path loss and is very sensitive to the atmospheric environment. Therefore, in order to develop a W-band communication system in the future, it is necessary to analyze the characteristics of path loss according to the channel environment. In this paper, to analyze the characteristics of the W-band path loss, the random forest technique was used, and the influence of the channel parameters according to the distance section was analyzed through the path loss data according to various channel environment parameters. As a result of the simulation, the distance has the highest influence on the path loss in the short distance, and the other channel environment factor is almost ignored. However, as the distance section became longer, the influence of distance decreased while the impact of clutter and rainfall increased.
Keywords
Atmospheric loss; Path loss; Rainfall attenuation; Random forest; W-band;
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1 J. H. Jung, M. D. Kim, J. N. Lee, Y. K. Cho, K. S. Kim, H. K. Kwon, Y. S. Song, H. S. Park, E. Y. Choi, J. S. Kim and T. J. Kim, "Wireless Communication System on Very High Frequency," vol.34, no.6, pp.28-41, 2019. DOI: 10.22648/ETRI.2019.J.340603   DOI
2 ITU-R Recommendation, "P.530:Propagation data and prediction methods required for the design of terrestrial line-of-sight systems," https://ww.itu.int/rec/R-REC-P.530-18-202109-I/en
3 ITU-R Recommendation, "P.676:Attenuation by atmospheric gases and related effects," https://www.itu.int/rec/R-REC-P.676
4 ITU-R Recommendation, "P.838:Specific attenuation model for rain for use in prediction methods," https://www.itu.int/rec/R-REC-P.838/en
5 L. Breiman, "Random Forests," https://link.springer.com/article/10.1023/A:1010933404324
6 ITU-R Recommendation, "P.2108:Prediction of clutter loss," https://www.itu.int/rec/R-RECP.2108/en
7 ITU-R Recommendation, "P.525:Calculation of free-space attenuation," https://www.itu.int/rec/R-REC-P.525/en