Results 31 to 40 of about 1,061 (180)

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

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

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

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

Rigorous Performance Characterisation of AI‐Enhanced 6G Underwater Optical Wireless Networks: Link Budget Correction and Empirical Gain Validation

IET Optoelectronics, Volume 20, Issue 1, January/December 2026.
This document presents a revised mathematical framework for underwater 6G networks addressing common mistakes in research that result in overly optimistic outcomes. By employing established physical models and stringent technical limitations, we create a self‐validated benchmark of 776 Mbps over a distance of 44.8 m in clear ocean water with ...
Yousuf Islam, Md. Imam Hossain, Md. Jehadul Islam Mony   +2 more
wiley   +1 more source

Multispectrally Constrained Waveform Design for MIMO Radar Direction Finding

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This paper focuses on the design of transmit waveforms for multiple‐input‐multiple‐output (MIMO) radar systems in a spectrally crowded environment. The purpose is to improve the angle estimation performance of MIMO radar by minimising the asymptotic estimation bound of multiple signal classification (MUSIC) algorithm.
Da Li, Xingyu Wang, Xiangyu Wu, Cheng Zhou, Yuxue Sun   +4 more
wiley   +1 more source

Spectrally Compatible Deceptive Jamming Waveform Design for Synthetic Aperture Radar Countermeasures

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This paper focuses on the design of synthetic aperture radar (SAR) deceptive jamming waveforms with spectrum‐compatible capability. By using the synthesised jamming waveform, successful deception against the hostile SAR system is demonstrated by generating false targets with high fidelity in both range and azimuth.
Yuhao Chen, Bo Tang, Da Li, Yangjia Wang, Wenjun Wu   +4 more
wiley   +1 more source

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, Sajid Ahmed, Mohamed‐Slim Alouini   +2 more
wiley   +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, Zixuan Zhang, Ke Zhang, Xiaobai Li, Wei Cheng, Tony Quek   +5 more
wiley   +1 more source