Results 71 to 80 of about 9,850 (223)
Design and Optimization of Finite Alphabet Waveforms for Multiple‐Antenna Radar Covariance Matching
IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.This article propose a novel method for finite‐alphabet waveform generation based on constrained matrix decomposition. It also expands theoretical feasibility bounds for generating covariance matrices with binary waveforms, proves that matrices from autoregressive processes are always realizable and introduces an optimal adjustment procedure for ...
Karim Saifullin +2 more
wiley +1 more source
Low-PAPR condition for 5G-candidate waveforms
, 2017 International audienceTo meet 5G networks challenges in terms of high data ratesand spectral efficiency, one solution might be using multicarriermodulations (MCM)s.
Mouna Ben Mabrouk +7 more
core +1 more source
Open Mathematics, 2016 A major drawback of orthogonal frequency division multiplexing (OFDM) signals is the high value of peak to average power ratio (PAPR). Partial transmit sequences (PTS) is a popular PAPR reduction method with good PAPR reduction performance, but its ...
Goudos Sotirios K.
doaj +1 more source
Research on reducing PAPR of QAM-OFDM radar-communication integration sharing signal
The Journal of Engineering, 2019 In order to solve the problem of high peak-to-average power ratio (PAPR) of the sharing signal for radar-communication integration based on quadrature amplitude modulation-orthogonal frequency division multiplexing modulation, according to the ...
Yongjun Yang +4 more
doaj +1 more source
Joint 2‐D LFM Modulation and Mismatched Filter Design in Dual‐Function Radar‐Communication System
IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.This paper proposes a joint 2‐D LFM modulation and mismatched filtering design for military‐grade dual‐function radar‐communication systems. The novel scheme modulates data onto both the initial frequency and chirp rate of LFM pulses, boosting data rates whilst preserving the constant‐envelope property critical for high‐power transmission.
Kehao Wang +5 more
wiley +1 more source
IEEE Open Journal of the Communications SocietyIn this paper, we propose new methods for reducing the peak-to-average power ratio (PAPR) for downlink massive multiple-input multiple-output (MIMO) along with orthogonal frequency division multiplexing. We develop the PAPR reduction method based on peak
Jun Saito +2 more
doaj +1 more source
IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.This paper proposes a radar intra‐pulse modulation recognition method based on the transformer architecture, named RBViT. By designing multi‐scale input embeddings and introducing a novel position encoding based on radial basis functions (RBF), the algorithm significantly enhances recognition performance under a low signal‐to‐noise ratio (SNR ...
Baihong Chen, Wei Wang, Bin Rao
wiley +1 more source
PAPR Reduction using PTS-PSO technique for 16A16 MIMO-OFDM Systems with 16-QAM
, 2015 In this paper it is proposed that a particle swarm optimization PSO based partial transmit sequence PTS technique is used so that least Peak-to-Average Power Ratio PAPR is achieved in Multiple Input Multiple Output- Orthogonal Frequency Division ...
Jayati Das
core
OFDM system energy efficiency increasing method based on peak-factor decrease
Физика волновых процессов и радиотехнические системы, 2018 In this work the peak-factor decreasing method for the OFDM systems is proposed, based on the group spectrum subcarriers processing and the signal constellation rotation.
A.Kh. Sultanov +2 more
doaj
IEEE AccessThis research addresses the challenges of high Peak-to-Average Power Ratio (PAPR), sideband leakage, and spectrum efficiency in 5G wireless networks. We compare Universal Filtered Multi-Carrier (UFMC), Scrambled UFMC (S-UFMC), and Orthogonal Frequency ...
K. Krishna Kishore +4 more
doaj +1 more source