Computationally Efficient Blind Source Separation-Based MIMO-PA Linearization
IEEE AccessThis paper presents a Cross-Interference Reduction Digital predistortion (CIR-DPD) for a multiple-input and multiple-output (MIMO) system. The proposed method cancels the detrimental effect of crosstalk due to different MIMO branches and the antenna ...
Shipra, Meenakshi Rawat
doaj +1 more source
On the Impact of Hardware Impairments on Massive MIMO [PDF]
, 2014 Massive multi-user (MU) multiple-input multiple-output (MIMO) systems are one possible key technology for next generation wireless communication systems. Claims have been made that massive MU-MIMO will increase both the radiated energy efficiency as well
Athley, Fredrik +8 more
core +2 more sources
A Joint Linearization/Companding Approach for Improving a CO-OFDM Transmitter
, 2015 International audience—The joint use of peak-to-average power ratio (PAPR) reduction and linearization via digital predistortion is investigated in this letter, with the view to improve the performances of coherent optical OFDM (CO-OFDM) systems ...
Azou, Stéphane +6 more
core +3 more sources
Design of 5 th-order analog predistorter [PDF]
, 2010 This paper presents the design of a 5th-order analog predistorter to suppress the 3rd-and 5th-order intermodulation distortion products (EVTDP3 and EVTDP5) at the output of a base-station power amplifiers (PAs).
Cheung, SW, Sun, XL, Yuk, TI
core +1 more source
A 4W Doherty power amplifier in GaN MMIC technology for 15GHz applications [PDF]
, 2017 This letter presents an integrated Doherty power amplifier (PA) in 0.25- μm GaN on SiC process. Designed for 15-GHz point-to-point radios, the PA exhibits an output power of 36 ± 0.5 dBm between 13.7 and 15.3 GHz, while at 14.6 GHz, it shows a 6-dB ...
Camarchia, Vittorio +4 more
core +3 more sources
Towards a More Generalized Doherty Power Amplifier Design for Broadband Operation [PDF]
, 2017 The conventional Doherty power amplifier (DPA) theory is limited to single carrier operations, leading to a non-generic structure. This paper presents a new analysis that generalizes the conventional DPA theory for increased efficiency and bandwidth.
Barakat, Ayman +4 more
core +1 more source
Wavelet Decomposition Prediction for Digital Predistortion of Wideband Power Amplifiers
Applied SciencesDigital predistortion (DPD) is essential for improving the efficiency and linearity of power amplifiers (PAs), particularly in radio frequency communication systems.
Shaocheng Peng, Jing You
doaj +1 more source
A hermite interpolated LUT for RF power amplifiers [PDF]
, 2017 Digital predistortion is one of the most widely used techniques to linearize a power amplifier (PA) to reduce the error vector magnitude (EVM) distortion and spectral regrowth.
Al-Hussaini, Khalid Taher Mohammed +3 more
core
A Comparative Analysis of the Complexity/Accuracy Tradeoff in Power Amplifier Behavioral Models [PDF]
, 2010 A comparative study of state-of-the-art behavioral models for microwave power amplifiers (PAs) is presented in this paper. After establishing a proper definition for accuracy and complexity for PA behavioral models, a short description on various ...
Afsardoost, Sepideh +5 more
core +1 more source
Linearization Study of a Highly Efficient CMOS-GaN RF Pulse Width Modulation Based Transmitter [PDF]
, 2012 This paper studies linearity of a 2 GHz, 10 Watt peak output power RF pulse width modulation (RF-PWM) based transmitter. The transmitter incorporates a tunable load network class-E PA as the final output stage.
Acar, Mustafa +5 more
core +1 more source