Results 31 to 40 of about 23,384 (296)
A crosscorrelation predistorter using memory polynomials [PDF]
2004 IEEE International Symposium on Circuits and Systems (ISCAS), 2004 Amplification of signals with fluctuating envelopes inevitably leads to distortion because of non-linear behavior of the Power Amplifier (PA). Digital Predistortion can counteract these non-linear effects. In this paper, a novel Digital Predistortion architecture is presented which is based on the calculation of crosscorrelation functions using ...
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IEEE Access, 2019 The analog front of the direct conversion transmitter suffers from the effects of various unavoidable nonlinearities, such as local oscillator (LO) leakage, power amplifier (PA) nonlinearities, and in-phase and quadrature (I/Q) branch amplitude and phase
Yao Yao +4 more
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Polynomial Multiplication in NTRU Prime
Transactions on Cryptographic Hardware and Embedded Systems, 2020 This paper proposes two different methods to perform NTT-based polynomial multiplication in polynomial rings that do not naturally support such a multiplication. We demonstrate these methods on the NTRU Prime key-encapsulation mechanism (KEM) proposed by
Erdem Alkim +10 more
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Transmitter IQ Imbalance Mitigation and PA Linearization in Software Defined Radios [PDF]
Radioengineering, 2022 Radio frequency (RF) power amplifiers (PA) are efficiently linearized by adaptive digital predistortion (DPD). However, performance of DPD is severely degraded in presence of transmitter’s frequency-selective in-phase/quadrature (I/Q) imbalance.
B. Jovanovic, S. Milenkovic
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Carrier Aggregated Radio-Over-Fiber Downlink for Achieving 2Gbps for 5G Applications
IEEE Access, 2019 We demonstrate experimentally, for the first time, a distributed digital predistortion model for radio-over-fiber (RoF) downlink suitable for broadband 5G signals.
Mahmood Noweir +3 more
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RF-PA Modeling of PAPR: A Precomputed Approach to Reinforce Spectral Efficiency
IEEE Access, 2020 This paper introduces the measurement/modeling of a nonlinear RF power amplifier (PA) model extraction of spectral overlaps and peak-to-average power ratio (PAPR).
Jose Alejandro Galaviz-Aguilar +2 more
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Digital Predistortion of Wideband Signals with Reduced Complexity Based on Feedback Wiener System
Journal of Telecommunications and Information Technology, 2021 Digital predistortion (DPD) using baseband signals is commonly used for power amplifier linearization. This paper is devoted to this subject and aims to reduce DPD complexity.
Tayeb H. C. Bouazza +2 more
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Local Polynomial Fitting with Long-Memory, Short-Memory and Antipersistent Errors
Annals of the Institute of Statistical Mathematics, 2002 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Beran, Jan, Feng, Yuanhua
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IEEE Photonics Journal, 2018 The light-emitting diode (LED) is the major source of nonlinearity in LED communications, and the nonlinearity needs to be effectively modeled and mitigated to avoid the degradation of communication performance.
Weikang Zhao +5 more
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Polynomial decay to thermoelastic plates with memory [PDF]
Quarterly of Applied Mathematics, 2009 We consider the linear model of thermoelastic plates with memory and we show that the solution decays polynomially with rates that depend on the regularity of the initial data.
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