Presentation 2006-03-16
IQ Imbalance Compensation on MB-OFDM with Transmit Diversity
Yohei KATO, Tsuyoshi IKUNO, Yukitoshi SANADA,
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Abstract(in English) Currently, Multi-band OFDM (MB-OFDM) is considered as one of the modulation schemes of UWB and is actively investigated. It is necessary to provide low cost receivers for consumers in order to receive wide support for MB-OFDM system. Such receivers can be archived by utilizing direct conversion architecture. However, the balance of in-phase component and quadrature-phase component of demodulated signals is lost when direct conversion architecture is used. This phenomenon is called IQ imbalance. In this paper, a way of IQ imbalance compensation using transmit diversity is proposed. This scheme enables the system to overcome the influence of frequency-selective fading and IQ imbalance at the same time. The performance of this scheme is shown through computer simulations. It is shown that IQ imbalance can be compensated accurately with proposed scheme.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) UWB / MB-OFDM / Direct Conversion / IQ Imbalance
Paper # IT2005-69,ISEC2005-126,WBS2005-83
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Committee ISEC
Conference Date 2006/3/9(1days)
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Paper Information
Registration To Information Security (ISEC)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) IQ Imbalance Compensation on MB-OFDM with Transmit Diversity
Sub Title (in English)
Keyword(1) UWB
Keyword(2) MB-OFDM
Keyword(3) Direct Conversion
Keyword(4) IQ Imbalance
1st Author's Name Yohei KATO
1st Author's Affiliation Dept. of Electronics and Electrical Engineering, Keio University.()
2nd Author's Name Tsuyoshi IKUNO
2nd Author's Affiliation Dept. of Electronics and Electrical Engineering, Keio University.
3rd Author's Name Yukitoshi SANADA
3rd Author's Affiliation Dept. of Electronics and Electrical Engineering, Keio University.
Date 2006-03-16
Paper # IT2005-69,ISEC2005-126,WBS2005-83
Volume (vol) vol.105
Number (no) 663
Page pp.pp.-
#Pages 6
Date of Issue