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Advanced methods for I/Q imbalance compensation in communication receivers
I/Q signal processing is widely utilized in today's communication receivers. However, all I/Q processing receiver structures, such as the low-IF receiver, face a common problem of matching theExpand
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Circularity-Based I/Q Imbalance Compensation in Wideband Direct-Conversion Receivers
Communication receivers that utilize I/Q downconversion are troubled by amplitude and phase mismatches between the analog I and Q branches. These mismatches are unavoidable in practice and reduce theExpand
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Frequency-Selective I/Q Mismatch Calibration of Wideband Direct-Conversion Transmitters
The current trend in building low-cost yet flexible radio transceivers is to use the so-called direct-conversion principle, which is based on complex (I/Q) up- and down conversions. Such transceiversExpand
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Blind signal estimation in conjugate signal models with application to I/Q imbalance compensation
This letter addresses the blind signal estimation problem in the so-called conjugate signal model, where the observed signal is a linear combination of the desired signal and its complex conjugate.Expand
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Channel Equalization in Filter Bank Based Multicarrier Modulation for Wireless Communications
Channel equalization in filter bank based multicarrier (FBMC) modulation is addressed. We utilize an efficient oversampled filter bank concept with 2x-oversampled subcarrier signals that can beExpand
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Compensation of frequency-selective I/Q imbalances in wideband receivers: models and algorithms
To achieve satisfactory performance in analog I/Q (inphase/quadrature) processing-based wireless receivers, the matching of amplitudes and phases of the I and Q branches becomes vital. In practice,Expand
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Blind Compensation of Frequency-Selective I/Q Imbalances in Quadrature Radio Receivers: Circularity -Based Approach
Gain and phase differences between the analog in-phase (I) and quadrature (Q) branches of a quadrature receiver are unavoidable, and seriously degrade its image rejection capabilities. Furthermore,Expand
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Distance-Based Interpolation and Extrapolation Methods for RSS-Based Localization With Indoor Wireless Signals
Wireless local area network (WLAN)-based fingerprinting using received signal strength (RSS) has been considered to be one solution for indoor positioning. However, one widely recognized problem inExpand
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Prototype filter design for filter bank based multicarrier transmission
This paper concentrates on an efficient prototype filter design in the context of filter bank based multicarrier (FBMC) transmission. An advantage of the chosen method, frequency sampling technique,Expand
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Advanced digital signal processing techniques for compensation of nonlinear distortion in wideband multicarrier radio receivers
One of the main trends in the evolution of radio receivers and other wireless device is to implement more and more of the receiver functionalities using digital signal processing (DSP). However, dueExpand
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