Beam-Space Adaptive Array Antenna for Suppressing the Doppler Spread in OFDM Mobile Reception(Wireless Communication Technology)
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概要
- 論文の詳細を見る
This paper examines the Inter Carrier Interference (ICI) due to Doppler spread in OFDM mobile reception and proposes the use of Beam-Space Adaptive Array Antennas for moving receivers. In the proposed system, firstly we separate the multi-path signals into multi-beams according to their incident directions, then correct the frequency shift of each beam signal, considering the beam direction, and finally combine the corrected signals based on Maximal Ratio Combining (MRC). Further this paper clarifies the excellent performance of the proposed system in suppressing the influence of Doppler spread by carrying out computer simulation. Particularly, it was certified that it is possible to suppress the influence of the Doppler spread efficiently for all the receiving directions by using eight-element beam-space array antenna with element spacing of (3/8)λ, and referring three past symbol data when calculating the weight vector of MRC.
- 社団法人電子情報通信学会の論文
- 2004-01-01
著者
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KARASAWA Yoshio
Department of Electronic Engineering, The University of Electro-Communications
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Wijesena Sampath
Department Of Electronic Engineering The University Of Electro-communications
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Karasawa Y
University Of Electro-communications
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Karasawa Yoshio
Department Of Electronic Engineering & Advanced Wireless Communication Research Center (awcc) Th
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Karasawa Yoshio
Department Of Electronic Engineering The University Of Electro-communications
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KARASAWA Yoshio
Department of Communication Engineering and Informatics, The University of Electro-Communications
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