The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Propagation Model Combination of Building Entry Loss and Clutter Loss in Suburban Environment with Low-Rise High-Density Buildings at 3 and 24 GHz

저층 고밀도 건물 교외 환경에서 3 GHz 및 24GHz의 건물 인입 손실과 클러터 손실의 전파 모델 결합

  • 김동우 (조선대학교 전자공학부) ;
  • 오순수 (조선대학교 전자공학부)
  • Received : 2022.03.11
  • Accepted : 2022.04.17
  • Published : 2022.04.30
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Abstract

We measured the clutter loss (CL) and building entry loss (BEL) of signals in a low-rise high-density suburban environment. Three propagation models for BEL, CL, and a combination of BEL and CL were measured in the selected environment. We then derived the figures when the BEL was combined with the CL. At the two frequencies, the measured value of combination of BEL and CL is 27.55 dB and 26.12dB, respectively, and the differences between the measured value and the sum were -4.19 dB and 5.82 dB. Considering that the measurement was performed inside a building, such a difference seems to be small. Therefore, when BEL and CL were measured separately and summed, and then combined and summed, differences of -4.19 dB and 5.82 dB were apparent. This this result can be referenced when similar case of a propagation model was analyzed.

본 논문에서는 저층 고밀도 교외 환경에서 신호의 클러터 손실(Clutter loss)과 건물 인입 손실(Building entry loss)을 측정 후 분석했다. 선정된 환경에서 BEL, CL, BEL과 CL 결합 등 3가지 전파 모델을 측정하였다. 각 모델 측정 결과 바탕으로 BEL과 CL을 결합하였을 때의 수치를 분석했다. 각각 주파수에서 BEL과 CL 결합 측정값은 27.55dB 와 26.12dB 였으며, 계산값과 차이는 -4.19dB와 5.82dB였다. 측정이 건물 내부에서 이루어졌다는 점을 고려할 때 이러한 차이는 미미해 보인다. 따라서 BEL과 CL의 각각 측정값 합산과 결합 모델의 측정값을 비교하였을 때 -4.19dB와 5.82dB 오차를 도출하였고, 본 결과는 유사한 사례의 전파 모델 분석 시 참고 자료로 활용될 수 있을 것이다.

Keywords

Acknowledgement

본 연구는 과학기술정보통신부 및 정보통신기술진흥센터의 정보통신·방송 연구개발사업의 일환으로 수행하였음.[2018-0-01439, 40 GHz 이하 실내외 환경의 전파특성 분석 및 예측모델 개발]

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