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An equalization technique for OFDM and MC-CDMA in a time-varying multipath fading channels

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3 Author(s)
Won Gi Jeon ; Dept. of Electron. Eng., Chungang Univ., Seoul, South Korea ; Kyung Hi Chang ; Yong Soo Cho

In this paper, an equalization technique for OFDM and MC-CDMA systems in a time-varying multipath fading environment is described. A loss of subchannel orthogonality due to time-variation of multipath channels leads to interchannel interference (ICI) which increases the error floor in proportion to Doppler frequency. A simple frequency domain equalizer which can compensate the effect of time-variation in a multipath fading channel is proposed by taking into account only the ICI terms significantly affecting the error performance and by modifying the previous frequency-domain equalization techniques. The effectiveness of the proposed approach is demonstrated via computer simulation by applying it to OFDM system when the multipath fading channel is time-varying

Published in:
Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on  (Volume:3 )

Date of Conference: 21-24 Apr 1997

Page(s):
2529 - 2532 vol.3
Meeting Date :
21 Apr 1997-24 Apr 1997
ISSN :
1520-6149
Print ISBN:
0-8186-7919-0
INSPEC Accession Number:
5738378
Conference Location :
Munich
Digital Object Identifier :
10.1109/ICASSP.1997.599632
Product Type:
Conference Publications

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