The linearity-efficiency compromise
The demand on telecom operators for new services and increased data rates has created
difficult requirements for the signal-to-noise-and-distortion ratio of wireless systems …
difficult requirements for the signal-to-noise-and-distortion ratio of wireless systems …
[图书][B] Analysis and compensation of nonlinear power amplifier effects in multi-antenna OFDM systems
FH Gregorio - 2007 - aaltodoc.aalto.fi
The high peak to average power ratio (PAPR) levels associated with multicarrier systems
require the use of linear power amplifiers (PA) with large dynamic range. Unfortunately …
require the use of linear power amplifiers (PA) with large dynamic range. Unfortunately …
Effects of PAPR reduction on HPA predistortion
A Bo, Y Zhi-Xing, P Chang-Yong… - IEEE Transactions …, 2005 - ieeexplore.ieee.org
There have been many papers concerning about the peak to average power ratio (PAPR)
reduction and high power amplifier (HPA) linearization techniques for wireless OFDM …
reduction and high power amplifier (HPA) linearization techniques for wireless OFDM …
Self-IQ-demodulation based compensation scheme of frequency-dependent IQ imbalance for wideband direct-conversion transmitters
W Li, Y Zhang, LK Huang, J Cosmas… - IEEE Transactions …, 2015 - ieeexplore.ieee.org
A low cost frequency-dependent (FD) I/Q imbalance self-compensation scheme is
investigated in this paper. The direct conversion transmitters are widely used in wireless …
investigated in this paper. The direct conversion transmitters are widely used in wireless …
A 20-W Chireix outphasing transmitter for WCDMA base stations
A Huttunen, R Kaunisto - IEEE transactions on microwave …, 2007 - ieeexplore.ieee.org
A Chireix outphasing transmitter for Band I wideband code-division multiple-access base
stations was implemented using a nonisolating power combiner and two high-efficiency …
stations was implemented using a nonisolating power combiner and two high-efficiency …
Efficient baseband digital predistortion techniques for linearizing power amplifier by taking into account nonlinear memory effect
X Feng - 2015 - hal.science
Baseband digital predistortion (DPD) techniques for linearizing power amplifiers (PA) with
memory effects are investigated in this thesis. Firstly, the relevant elements concerning PA …
memory effects are investigated in this thesis. Firstly, the relevant elements concerning PA …
Improved LUT technique for HPA nonlinear pre-distortion in OFDM systems
A Bo, Y Zhi-Xing, P Chang-Yong, Z Tao-Tao… - Wireless Personal …, 2006 - Springer
In this paper, we focus on the Look-up Table (LUT) technique for the compensation of HPA
nonlinear distortion. An improved LUT method is proposed with better performance …
nonlinear distortion. An improved LUT method is proposed with better performance …
High efficiency GaN wideband Doherty amplifier for LTE-advanced applications
M Yang, J Wang, J Xia, Y Sun, J Zhai… - Asia-Pacific Microwave …, 2011 - ieeexplore.ieee.org
In this paper, a high efficiency GaN Doherty power amplifier (PA) with broad signal
bandwidth for LTE-Advanced applications is presented. The carrier and peak amplifier of the …
bandwidth for LTE-Advanced applications is presented. The carrier and peak amplifier of the …
Adaptive HPA linearization technique for practical ATSC DTV system
J Lee, S Jeon, J Kim, YW Suh - IEEE transactions on …, 2013 - ieeexplore.ieee.org
In the digital television (DTV) broadcasting system, high power amplifier (HPA) is the most
essential device to expand the service availability and coverage. However, as the input …
essential device to expand the service availability and coverage. However, as the input …
Low cost estimation of IQ imbalance for direct conversion transmitters
A low cost frequency-dependent (FD) I/Q imbalance self-compensation scheme is
investigated in this paper. The direct conversion transmitters are widely used in wireless …
investigated in this paper. The direct conversion transmitters are widely used in wireless …