Signal Strength Prediction and Distribution Characteristics in Indoor Radio Propagation at 2.5 GHz Band (Special Issue on Personal, Indoor and Mobile Radio Communications)
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概要
- 論文の詳細を見る
In this paper, radio propagation in the medium-scale building is investigated at 2.5 GHz band. In order to predict the propagation loss in any place, four major modes of propagation are considered: low-loss in line-of-sight (LOS) wave, corridor guided wave, direct transmission wave through obstructions, and the reentered wave. Based on the measured results of attenuation characteristics, the macroscopic parameters for the above mentioned modes of wave propagation are determined. Using these parameters, signal strengths are predicted with average standard deviation of 4.5dB. The fading characteristics are studied by measuring the Rician parameter and the correlation coefficient for 2-branch diversity antennas separated by 50 cm. The Rician parameters are 2 in case of the LOS propagation, and 1 in case of the no LOS propagation. The two branch correlation coefficients are less than 0.5 within coverage of 80-95% in almost all the locations.
- 社団法人電子情報通信学会の論文
- 1994-07-25
著者
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Furukawa Hiroshi
Faculty Of Pharmacy Meijo University
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Akaiwa Yoshihiko
Faculty Of Computer Science And Systems Engineering Kyushu Institute Of Technology
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Oosaki Kuninori
Faculty of Computer Science and Systems Engineering, Kyushu Institute of Technology
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Shimizu Hiroyuki
Mobile Communication System Research Co. Ltd.
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Oosaki K
Kurume National Coll. Technol. Kurume‐shi Jpn
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Furukawa Hiroshi
Faculty Of Computer Science And Systems Engineering Kyushu Institute Of Technology
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