Results 11 to 20 of about 179 (135)
Digital Predistortion for Hybrid MIMO Transmitters [PDF]
IEEE Journal of Selected Topics in Signal Processing, 2018 Accepted for publication in IEEE Journal of Selected Topics in Signal ...
Mahmoud Abdelaziz +4 more
openaire +4 more sources
Digital Predistortion in Large-Array Digital Beamforming Transmitters [PDF]
2018 52nd Asilomar Conference on Signals, Systems, and Computers, 2018 8 pages, Accepted for publication in Asilomar Conference on Signals, Systems, and ...
Alberto Brihuega +3 more
openaire +3 more sources
On-board signal predistortion for digital transparent satellites [PDF]
2015 IEEE 16th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2015 On-board processing (OBP), a paradigm that allows for manipulation of the signal at the satellite transponder, is being embraced by a large section of the satellite community. Exploiting OBP can lead to efficient implementation, bandwidth saving, lower redundancy, and better performance.
Nicolò Mazzali +2 more
openaire +1 more source
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, Volume 39, Issue 3, May/June 2026.ABSTRACT Behavioral models for Power Amplifier (PAs), particularly those based on Neural Networks (NNs), often suffer from high computational complexity when handling wideband signals. In this paper, we present a novel behavior model for wideband GaN PAs based on a Two‐Sided Temporal Convolutional Neural Network (TST‐CNN).
Haithem Rezgui +3 more
wiley +1 more source
Size‐ and Depth‐Extended Aerial 3D Display Using Fresnel‐Lens‐Enhanced AIRR
Journal of the Society for Information Display, Volume 34, Issue 5, Page 451-460, May 2026.A size‐ and depth‐extended three‐dimensional (3D) aerial display is realized by combining a light‐field display with a magnifying lens and a Fresnel‐lens‐enhanced aerial imaging by retro‐reflection (LeAIRR) system. The magnifying lens enlarges the virtual light‐field display plane without increasing the physical panel size, extending the aerial image ...
Akito Fukuda +5 more
wiley +1 more source
Advanced Photonics Research, Volume 7, Issue 3, March 2026.This article proposes a deep learning (DL) approach for modeling and optimizing frequency‐doubled radio‐over‐fiber links. By collectively replacing traditional components with DL model, accurate system evaluation is achieved. Moreover, through an end‐to‐end architecture, performance optimization is accomplished.
Difei Shi +3 more
wiley +1 more source
Digital Predistortion with ROVA
2025 105th ARFTG Microwave Measurement Conference (ARFTG)To improve the linearity and efficiency of power amplifiers (PAs), it is nowadays paramount to predistort them using digital predistortion (DPD). An accurate model is needed for the predistorter, and this paper proposes and shows that the frequency-domain ROVA (seRies expansiOn of the Volterra Approach) model fits perfectly here.
Varano, Amedeo +5 more
openaire +2 more sources
International Journal of Satellite Communications and Networking, Volume 44, Issue 1, Page 73-88, January/February 2026.The potential gains of NOMA were evaluated in a satellite system with heterogeneous receivers, after considering the use of specific DVB‐S2X MODCODs, along with the impact of non‐linearities. It was concluded that a judicious power allocation in NOMA, jointly optimized with the IBO of the PAs, can yield significant sum‐rate gains.
Tomás Ramírez, Carlos Mosquera
wiley +1 more source
International Journal of Satellite Communications and Networking, Volume 44, Issue 1, Page 47-59, January/February 2026.The performance limitation in multiple‐input multiple‐output (MIMO) feeder links due to time and phase misalignment of the ground stations is investigated. Time and phase distribution over optical fiber is considered as an approach to achieve the synchronization requirements.
Eriserdi Mollaymeri +2 more
wiley +1 more source
A 24‐28 GHz GaAs Reflection‐Type Phase Shifter MMIC for 5G Mm‐Wave Application
Electronics Letters, Volume 62, Issue 1, January/December 2026.Reflective‐Type Phase Shifters (RTPS) can be implemented in GaAs technology operating at 24‐28 GHz. By incorporating an enhanced multi‐resonant structure with Schottky diodes, a relative phase shift of up to 180° is achieved. ABSTRACT This letter presents a millimetre‐wave continuously tunable reflection‐type phase shifter (RTPS) using a 0.25 µm GaAs ...
Daoming Wang +4 more
wiley +1 more source