Presentation 2005/2/23
Effects of IQ Imbalance and Effective Compensation Scheme on the MIMO-OFDM Communication System
Hiroyuki KAMATA, Kei SAKAGUCHI, Kiyomichi ARAKI,
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Abstract(in English) MIMO communication systems can provide high channel capacity theoretically. However, there is no been sufficient investigation about effects of the imperfection caused by the RF hardware on the MIMO system. In this paper, we focus on the influence of the IQ imbalance on the MIMO communication system. As a result, it is found that the IQ imbalance causes sever degradation into the MIMO communication system. To combat this problem, the new extended channel matrix including the influence of IQ imbalance is introduced. Then the method of IQ imbalance compensation by using the extended channel matrix is proposed in this paper. The validity of the method is investigated by computer simulation.
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Keyword(in English) MIMO / OFDM / IQ imbalance / Compensation algorithm
Paper # WBS2004-57,A・P2004-238,RCS2004-325,MoMuC2004-108,MW2004-235
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Committee MoMuC
Conference Date 2005/2/23(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
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Title (in English) Effects of IQ Imbalance and Effective Compensation Scheme on the MIMO-OFDM Communication System
Sub Title (in English)
Keyword(1) MIMO
Keyword(2) OFDM
Keyword(3) IQ imbalance
Keyword(4) Compensation algorithm
1st Author's Name Hiroyuki KAMATA
1st Author's Affiliation Graduate School of Science and Engineering, Tokyo Institute of Technology()
2nd Author's Name Kei SAKAGUCHI
2nd Author's Affiliation Graduate School of Science and Engineering, Tokyo Institute of Technology
3rd Author's Name Kiyomichi ARAKI
3rd Author's Affiliation Graduate School of Science and Engineering, Tokyo Institute of Technology
Date 2005/2/23
Paper # WBS2004-57,A・P2004-238,RCS2004-325,MoMuC2004-108,MW2004-235
Volume (vol) vol.104
Number (no) 681
Page pp.pp.-
#Pages 6
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