Results 91 to 100 of about 2,155 (213)
Reduced Complexity Sequential Digital Predistortion Technique for 5G Applications
Smart CitiesWireless communication infrastructure is a key enabling technology for smart cities. This paper investigates a novel technique to enhance the performance of 5G base stations by addressing the compensation of nonlinear distortions caused by radiofrequency
Moustafa Abdelnaby +3 more
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Research on linearisation of power amplifier based on digital pre-distortion
The Journal of Engineering, 2019 The power amplifier is an important device in the communication system, and its non-linear characteristics will lead to serious distortion of the output signal, reducing the performance of the communication system.
Kai Fang, Da Liu, Yongqing Wang
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, 2018 We have developed a new wideband digital feedback predistortion technique for wideband signals by combining digital feedback predistortion linearization and memory-effect compensation techniques, and investigated linearization performance for 802.16e ...
Kim, J, Kim, I, Kim, B, Moon, J
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Digital predistortion for 5G small cell : GPU implementation and RF measurements [PDF]
, 2019 In this paper, we present a high data rate implementation of a digital predistortion (DPD) algorithm on a modern mobile multicore CPU containing an on-chip GPU.
Valkama, Mikko +5 more
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Linearization techniques to suppress optical nonlinearity
, 2009 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This thesis is shown the implementation of the linearization techniques such as feedforward and pre-distortion feedback linearization to suppress the ...
Tabatabai, Farbod
core
IEEE AccessIn this work, a formulation of alternating direction method of multipliers (ADMM) for addressing power amplifiers (PA) modeling and linearization problems is presented. The proposal consists on leveraging the implicit redundancy of the equations in order
Elias Marques-Valderrama +2 more
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IEEE Access, 2020 This paper proposes two novel vector decomposed neural network models for behavioral modeling and digital predistortion (DPD) of radio-frequency (RF) power amplifiers (PAs): vector decomposed long short-term memory (VDLSTM) model and simplified vector ...
Hongmin Li +3 more
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Digital predistortion linearization methods for RF power amplifiers [PDF]
, 2008 Even though high linearity is crucial in modern mobile communications, it is not desirable to use the most linear power amplifier types due to their poor efficiency.
Teikari, Ilari
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Efficient digital predistortion in radio relay links with nonlinear power amplifiers
, 2000 An adaptive digital predistortion scheme, based on the amplitude-and-phase predistortion concept, is considered for the linearisation of microwave power amplifiers in high-data-rate radio relay links.
LOTTICI, VINCENZO +2 more
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Design and Analysis of a CO-OFDM Transmitter With Limited Modulator Extinction Ratio
IEEE Photonics Journal, 2014 In this paper, we consider the design and analysis of a coherent optical OFDM (CO-OFDM) transmitter using an optical in-phase/quadrature (I/Q) modulator with limited extinction ratio (ER) under four modulation formats. The transmitter-side digital signal
Lingchen Huang +2 more
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