Two-dimensional Cartesian memory polynomial model for nonlinearity and I/Q imperfection compensation in concurrent dual-band transmitters
The demand for high data rates and broadband wireless access necessitates the
development of radio systems that use multiband signals. With the deployment of these …
development of radio systems that use multiband signals. With the deployment of these …
Asymmetric modulation for hardware impaired systems—Error probability analysis and receiver design
Error probability study of hardware impaired (HWI) systems highly depends on the adopted
model. Considering the distinct improper Gaussian features of HWI systems, captured by …
model. Considering the distinct improper Gaussian features of HWI systems, captured by …
Efficient Estimation and Pilot-Free Online Re-Calibration of Imbalance in Broadband Direct-Conversion Transmitters
This paper proposes an efficient estimation and pilot-free online re-calibration scheme for
frequency-selective I/Q imbalance in broadband direct-conversion transmitters (Txs) with …
frequency-selective I/Q imbalance in broadband direct-conversion transmitters (Txs) with …
Agile single-and dual-band all-digital transmitter based on a precompensated tunable delta–sigma modulator
In this paper, a new architecture for designing tunable single-and dual-band radio-frequency
fully digital transmitters is proposed and validated. The proposed architecture excels the …
fully digital transmitters is proposed and validated. The proposed architecture excels the …
Digital front-end signal processing with widely-linear signal models in radio devices
L Anttila - 2011 - researchportal.tuni.fi
Necessitated by the demand for ever higher data rates, modern communications waveforms
have increasingly wider bandwidths and higher signal dynamics. Furthermore, radio devices …
have increasingly wider bandwidths and higher signal dynamics. Furthermore, radio devices …
I/Q Imbalance in Multiantenna Systems: Modeling, Analysis and RF-Aware Digital Beamforming
A Hakkarainen - 2017 - trepo.tuni.fi
Wireless communications has experienced an unprecedented increase in data rates,
numbers of active devices and selection of applications during recent years. However, this is …
numbers of active devices and selection of applications during recent years. However, this is …
Gain-phase mismatch correction technique for I/Q channel receiver
Every communication receiver that uses in-phase and quadrature channel signal processing
technique encounters problems related to matching of gain and phase in both the channels …
technique encounters problems related to matching of gain and phase in both the channels …
Asymmetric Signaling: A New Dimension of Interference Management in Hardware Impaired Communication Systems
S Javed - 2021 - repository.kaust.edu.sa
Hardware impairments (HWIs) impose a huge challenge on modern wireless commu-
nication systems owing to the characteristics like compactness, least complexity, cost ef …
nication systems owing to the characteristics like compactness, least complexity, cost ef …
A pruning method of joint 2D digital predistortion model for nonlinearity and I/Q imperfections in concurrent dual-band transmitters
In this paper, we propose a new method to prune the joint 2D digital predistortion (2D-DPD)
model for concurrent dual-band transmitter where in-phase and quadrature (I/Q) imbalance …
model for concurrent dual-band transmitter where in-phase and quadrature (I/Q) imbalance …
[PDF][PDF] Enabling Techniques for Future Broadband High Speed Wireless Communications
J Luo - 2012 - depositonce.tu-berlin.de
This thesis addresses the challenges of rapidly increasing data rate requirements in future
wireless communication systems, where the emphasis is on RF impairment compensation …
wireless communication systems, where the emphasis is on RF impairment compensation …