Results 31 to 40 of about 87,969,916 (159)

A Highly Efficient Two‐Sided Temporal Convolutional Neural Network for Wideband Digital Predistortion of RF Power Amplifiers

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, Rim Barrak, Amine Ben Salem, Adel Ghazel   +3 more
wiley   +1 more source

Contribution of non‐orthogonal multiple access signalling to practical multibeam satellite deployments

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

Unified Downlink‐Uplink Waveform Optimization For MIMO‐OFDM Integrated Sensing and Communication

IET Communications, Volume 20, Issue 1, January/December 2026.
This paper presents a unified waveform allocation framework for downlink and uplink MIMO‐OFDM integrated sensing and communication (ISAC) systems in 6G networks. We develop five optimization schemes, including optimal‐for‐communication, optimal‐for‐sensing, and MMSE‐based joint allocation, with closed‐form expressions for spectral efficiency, sensing ...
Gujjula Ramya, Puli Kishore Kumar, Santhosh Kumar Dhatrika   +2 more
wiley   +1 more source

Effect of gear ratio on peak power and time to peak power in BMX cyclists. [PDF]

, 2016
The aim of this study was to ascertain if gear ratio selection would have an effect on peak power and time to peak power production in elite Bicycle Motocross (BMX) cyclists. Eight male elite BMX riders volunteered for the study.
Roberts, Simon J., Hurst, HT, Roberts, Simon J, Rylands, Lee, Roberts, SJ, Rylands, Lee P, Hurst, Howard Thomas, Rylands, LP   +7 more
core   +1 more source

A Two‐Stage Genetic Algorithm for Joint Optimization of PAPR and PSLR for Precise Signal Reconstruction in OFDM‐ISAC Systems

IET Communications, Volume 20, Issue 1, January/December 2026.
This paper presents a two‐stage genetic algorithm based waveform design framework for OFDM integrated sensing and communication (ISAC) systems. In Stage‐1, a multi‐objective genetic algorithm jointly optimizes the peak‐to‐average power ratio (PAPR) and peak sidelobe level ratio (PSLR) under forward error correction and reserved subcarrier constraints ...
Haidong Xu, Zhanya Li, Xiaoxiao Zhuo, Guyue Zhu, Chenfeng Xu, Liang Tang, Yu Zhao   +6 more
wiley   +1 more source

Peak-to-Average-Power-Ratio (PAPR) reduction in WiMAX and OFDM/A systems

EURASIP Journal on Advances in Signal Processing, 2011
A peak to average power ratio (PAPR) reduction method is proposed that exploits the precoding or beamforming mode in WiMAX. The method is applicable to any OFDM/A systems that implements beamforming using dedicated pilots which use the same beamforming ...
Svantesson Thomas, Khademi Seyran, Viberg Mats, Eriksson Thomas   +3 more
doaj  

Modification of Synthetic Filtered Output for PSL Reduction in DFT‐Spread OFDM MIMO Radar Using Doppler‐Tolerant Extended Space‐Time Coding

Electronics Letters, Volume 62, Issue 1, January/December 2026.
We propose a Doppler‐tolerant DFT‐spread orthogonal time‐coded OFDM (DSS‐OTC‐OFDM) waveform for MIMO radar that maintains orthogonality under Doppler shifts while enabling flexible code design. An optimisation framework is developed to minimise peak sidelobe level (PSL) and suppress cross‐correlation after matched filtering across a range of Doppler ...
Ata Nokhostin Roohi, Hossein Soleimani, Mohammad Soleimani   +2 more
wiley   +1 more source

Efficient PAPR reduction algorithm in OFDM based on nonlinear piecewise companding

Tongxin xuebao, 2021
Focusing on the high peak-to-average power ratio （PAPR） problem in orthogonal frequency division multiplexing （OFDM） systems， a generalized hybrid of rayleigh and sine distribution based nonlinear companding algorithm for PAPR reduction in OFDM systems ...
Zhitong XING, Yun LI, Deyi PENG, Bensi ZHANG, Kaiming LIU, Yuan’an LIU   +5 more
doaj   +2 more sources

Digital Predistortion of Power Amplifiers for Quantum Computing

Electronics Letters, Volume 62, Issue 1, January/December 2026.
This letter applies digital predistortion (DPD) to linearize the power amplifier in microwave quantum control signal generators. By compensating for nonlinearities and memory effects, DPD reduces the mean qubit gate infidelity by approximately one order of magnitude without reducing the output power.
Marvin Jaeger, Bartosz Tegowski, Georg Frederik Riemschneider, Alexander Koelpin   +3 more
wiley   +1 more source

Research on Peak‐to‐Average Power Ratio Control Method for Switched Reluctance Pulse Generator

IET Electric Power Applications, Volume 20, Issue 1, January/December 2026.
Addressing the different requirements for peak output power when SRPG supplies power to pulse loads and DC loads, the peak‐to‐average power ratio (PAPR) is taken as the generation performance optimisation parameter. By investigating the power characteristics of the SRPG, the influence of control parameters on the PAPR is studied.
Yanting Liu, Fulin Zhou, Shanshan Yang, Minjun Guan, Chuang Liu   +4 more
wiley   +1 more source