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Jihyung Kim, Sangho Nam, Dong Seung Kwon and Daesik Hong, "Time-Varying Channel Estimation in OFDM Systems with Null Subcarriers", IEEE VTC 2008, May 2008
[IEEE VTC]
조회 87076
Status : | Presented |
---|---|
Date : | 2008-05 |
Title : | Time-Varying Channel Estimation in OFDM Systems with Null Subcarriers |
Authors : | Jihyung Kim, Sangho Nam, Dong Seung Kwon and Daesik Hong |
Conference : | IEEE VTC 2008 |
Abstract : | In this paper, we propose a robust channel estimation method in OFDM systems over fast fading channels. In consideration of the effect of null subcarriers, the proposed channel estimation is first performed in the frequency domain. By making efficient use of channel correlation and the property of ICI to reduce the number of needed parameters for channel estimation, robust channel estimation for ICI is accomplished in parallel, pilot cluster by pilot cluster. It is then transformed into the time domain to obtain a gain in noise reduction and to reduce interpolation error as well. Simulation results show that the proposed channel estimation has good performance compared to previous works. |
URL : | http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4525852 |
Jihyung Kim; Sangho Nam; Dong Seung Kwon; Daesik Hong; , "Time-Varying Channel Estimation in OFDM Systems with Null Subcarriers," Vehicular Technology Conference, 2008. VTC Spring 2008. IEEE , vol., no., pp.1409-1412, 11-14 May 2008
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