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Keukjoon Bang, Namsin Cho, K. Oh, J. Park and Daesik Hong, "Improving the Spectral Efficiency for the OFDM System Using the Time and Frequency Domain Equalization", IEEE ICCE, Jun. 1998
[IEEE ICCE]
조회 65360
Status : | Presented |
---|---|
Date : | 1998-06 |
Title : | Improving the Spectral Efficiency for the OFDM System Using the Time and Frequency Domain Equalization |
Authors : | Keukjoon Bang, Namsin Cho, K. Oh, J. Park and Daesik Hong |
Conference : | IEEE International Conference on Consumer Electronics |
Abstract : | In an OFDM system, data symbols are transmitted in parallel over multiple subchannels with a long symbol dzrration. A simple equalizer is expected to yield satisfactoly results provided that it uses a sufficiently long guard interval. But a long guard interval results in an excessive prolongation of the symbol duration and thus in bandwidth eflciency loss. In this article, we propose the dual equalization in both time and frequency domain. Thus it is possible to shorten the guard interval while maintaining the bit error rate performance or impvove the bit error rate performance while maintaining the guard interval DFEfDecision Feedback Equalization) is introduced for timedomain equalization while conventional I-tap linear equalizers are used for frequency-domain equalization. Simulation results show the effectiveness of the proposed algorithm on the multipath channel specified in ETSI Draft prETS 300 744. |
URL : | http://ieeexplore.ieee.org/xpl/articleDe...ber=678434 |
Keukjoon Bang; Namshin Cho; Kilnam Oh; Jaehong Park; Daesik Hong; , "Improving The Spectral Efficiency For The Ofdm System Using The Time And Frequency Domain Equalization," Consumer Electronics, 1998. ICCE. 1998 Digest of Technical Papers. International Conference on , vol., no., pp. 468- 469, 2-4 June 1998
doi: 10.1109/ICCE.1998.678434URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=678434&isnumber=14904
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