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http://dx.doi.org/10.5515/KJKIEES.2009.20.9.1003

Study on Wave Propagation Characteristics Modeling in Tunnel  

Jeong, Won-Jeong (Department of Radio Science and Engineering, Chungnam National University)
Kim, Tae-Hong (Department of Radio Science and Engineering, Chungnam National University)
Han, Il-Tak (Agency for Defence Development)
Choi, Moon-Young (Korea Radio Promotion Agency)
Ryu, Joon-Gyu (Electronics and Telecommunications Research Institute)
Lee, Ho-Jin (Electronics and Telecommunications Research Institute)
Pack, Jeong-Ki (Department of Radio Science and Engineering, Chungnam National University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.20, no.9, 2009 , pp. 1003-1013 More about this Journal
Abstract
In the domestic environments, there are many tunnels since most of terrains have mountains. To ensure the quality of wireless network service in NLOS environment like tunnels which differ from indoor or outdoor wireless channels, researches on wave-propagation characteristics. through such channel are necessary. Especially, in such environment the ground repeater called Gap-Fillers are usually used for satellite mobile services. To make sure that mobile service using satellites in tunnels is available, the research about Gap Filling method is essential. This research is focus on the characterising the wave-propagation through tunnels, to find the appropriate frequency, HPBW of the Gap-Filler antennas, the number of Gap-Fillers, etc. In this paper, we present the effective Gap Filling method in tunnels for ISM band, based on analysis of ray tracing and measurement results.
Keywords
Wave Propagation; Tunnel; Gap-Filler; Gap Filling; Ray Tracing;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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