Performance characteristic of satellite Wibro system in the high-speed railroad channel environment (衛星通信)
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概要
- 論文の詳細を見る
In this paper, we describe the performance degradation of satellite Wibro system and compensation method in the high-speed railroad channel environment. High-speed railroad channel environment is divided into LOS channel and tunnel. In the LOS channel, signal blocking caused by railroad power feeder structures can be a critical problem which is can be solved with antenna diversity. On the other hand, multi path interference phenomenon, representable by propagation model of Optic Fiber, occurred in the tunnel may be another obstacle. These satellite Wibro system performance degradations in railroad channel environment are addressed and adequate compensation methods are proposed and verified through computer simulation. In addition, the ICI caused by Doppler shift in OFDM system is analyzed with its compensation method.
- 社団法人電子情報通信学会の論文
- 2007-10-25
著者
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Chang Dae-ig
Radio & Digital Broadcasting Division Broadband Radio Multimedia Team Etri
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Chang Dae-ig
Radio & Broadband Research Division Etri
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Lee Byung
School Of Information And Telecommunication Korea Aerospace University
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Cho Hyun
School Of Information And Telecommunication Korea Aerospace University
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Shin Min-su
Radio & Digital Broadcasting Division Broadband Radio Multimedia Team Etri
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Song Seung
School of Information and Telecommunication, Korea Aerospace University
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Ryu Joon-Gyu
Radio & Digital Broadcasting Division Broadband Radio Multimedia Team, ETRI
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Song Seung
School Of Information And Telecommunication Korea Aerospace University
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Cho Hyun
School Of Electrical Engineering And Computer Science Seoul National University
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Ryu Joon-gyu
Radio & Digital Broadcasting Division Broadband Radio Multimedia Team Etri
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Song Seung
School Of Information And Communication Engineering Sungkyunkwan University
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