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VTC
2010
IEEE
134views Communications» more  VTC 2010»
11 years 3 months ago
Sensitivity of Spectrum Sensing Techniques to RF Impairments
Cognitive radios are devices capable of sensing a large range of frequencies in order to detect the presence of primary networks and reuse their bands when they are not occupied. D...
Jonathan Verlant-Chenet, Julien Renard, Jean-Miche...
JCM
2007
134views more  JCM 2007»
11 years 5 months ago
Performance Analysis of Zero-IF MIMO OFDM Transceivers with IQ Imbalance
Abstract— This contribution analytically studies the influence of IQ mismatch on the performance of multiple-antenna orthogonal frequency division multiplexing (OFDM) systems ba...
Tim C. W. Schenk, Erik R. Fledderus, Peter F. M. S...
VTC
2007
IEEE
152views Communications» more  VTC 2007»
11 years 11 months ago
Iterative (TURBO) IQ Imbalance Estimation and Correction in BICM-ID for Flat Fading Channels
—TURBO principle has been exploited gainfully to implement many receiver functions. RF front-end impairments are a serious issue in high spectral efficient applications. IQ imba...
Raghunath Cherukuri, Poras T. Balsara
ICC
2007
IEEE
11 years 11 months ago
Low-Complexity EM-based Joint CFO and IQ imbalance Acquisition
—New air interfaces are currently being developed to meet the high spectral efficiency requirements of the emerging wireless communication systems. In this context, OFDM is cons...
François Horlin, André Bourdoux, Edu...
ICC
2007
IEEE
134views Communications» more  ICC 2007»
11 years 11 months ago
Pilot design for Joint Channel and Frequency-Dependent Transmit/Receive IQ Imbalance Estimation and Compensation in OFDM-Based T
Abstract— Nowadays a lot of effort is spent on developing OFDMbased inexpensive wireless transceivers. Direct-conversion radio frequency transceivers are appealing because they a...
Eduardo Lopez-Estraviz, Stefaan De Rore, Fran&cced...
ICASSP
2008
IEEE
11 years 12 months ago
Compensation of RF impairments in MIMO OFDM systems
In this paper we propose a generally applicable frequency domain equalization and radio frequency (RF) impairment compensation technique for orthogonal frequency division multiple...
Deepaknath Tandur, Marc Moonen
ICASSP
2009
IEEE
12 years 5 days ago
On the effect of transmitter IQ imbalance at OFDMA receivers
One limiting issue in implementing high-speed wireless systems is the impairment associated with analog processing due to component imperfections. In uplink transmission of multiu...
Yuki Yoshida, Kazunori Hayashi, Hideaki Sakai
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