Results 41 to 50 of about 9,490 (213)

Research on Low-complexity PAPR Reduction Algorithm in Radar-communication Integrated System [PDF]

Jisuanji gongcheng, 2016
This paper proposes a low-complexity Peak to Average Power Ratio(PAPR) reduction algorithm to deal with the high PAPR of radar-communication integrated system of Orthogonal Frequency Division Multiplexing(OFDM) based on Fractional Fourier Transform(FRFT).
CHEN Kangrun,LIU Yang,ZHANG Wei
doaj   +1 more source

A novel frequency-domain implementation of Tomlinson-Harashima precoding for SC-FDMA [PDF]

, 2009
There is considerable interest in the use of single carrier frequency division multiple access (SC-FDMA) as the uplink transmission scheme in the 3GPP Long Term Evolution standard. This interest is justified by the inherent single carrier structure of SC-
Nix, AR, Noune, MB
core   +2 more sources

Comparison of Reduction Methods for Peak-to-Average-Power-Ratio (PAPR) in MIMO-OFDM Systems with a New Approach

Acta Physica Polonica A, 2016
toren, murat/0000-0002-7012 ...
Tören, Murat, Çiflikli, Cebrail
openaire   +3 more sources

Analysis of Hybrid PAPR Reduction Methods of OFDM Signal for HPA Models in Wireless Communications

IEEE Access, 2020
Orthogonal Frequency Division Multiplexing (OFDM) suffers from a high Peak-to-Average Power Ratio (PAPR). Designing a High Power Amplifier (HPA) with high PAPR is not a wise technique as it roots the amplifier to operate in a non-linear region which is ...
Sravanti Thota, Yedukondalu Kamatham, Chandra Sekhar Paidimarry   +2 more
doaj   +1 more source

Synergistic Enhancement of Modified‐PVDF Humidity Sensitivity via Chemical Adsorption‐Ionic Conductivity and its Application in Intelligent Powered Air‐Purifying Respirator

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 3, May 2026.
The study developed a PVDF/SiO2 humidity sensor with superhydrophobic properties and integrated the humidity sensor into the intelligent powered air‐purifying respirator (IPAPR) for breath monitoring. Coupled with the Gated Recurrent Unit (GRU) machine learning prediction algorithm, it enables feedforward control of the fan to achieve respiratory ...
Xinjian He, Hongwei Liu, Xianjie Xu, Xinkai Qi, Danhong Gao, Hanling Deng, Dusong Hou, Qianyao Lu, Lei Zhu, Sheng Huang   +9 more
wiley   +1 more source

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

A Robust Peak-to-Average Power Ratio Reduction Scheme by Inserting Dummy Signals with Enhanced Partial Transmit Sequence in OFDM Systems. [PDF]

, 2013
Peak-to-average power ratio (PAPR) is one of the main drawbacks in orthogonal frequency division multiplexing (OFDM) systems. High PAPR forces the power amplifier to back off in order to operate in its linear region, which degrades the power efficiency ...
Borhanuddin Mohd Ali, CP Li, DH Park, JH Wen, L Yang, P Varahram, P Varahram, Pooria Varahram, RJ Baxley, SG Kang, SH Han, SH Muller, Somayeh Mohammady, T Jiang, Y Zhou   +14 more
core   +1 more source

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

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