Results 61 to 70 of about 34,306 (214)
Dual‐Band Metasurface‐Based Structured Light Generations for Futuristic Communication Applications
Small Science, Volume 5, Issue 5, May 2025.This study introduces a single‐cell‐driven dual‐band metasurface platform generating nondiffracting perfect vortex beams for Ultraviolet–Visible wavelengths. The metasurfaces, composed of silicon nitride nanoantennas, maintain high transmission efficiency across dual spectrums.
Muhammad Danial Shafqat +11 more
wiley +1 more source
Multiuser MIMO-OFDM Systems using Subcarrier Hopping
, 2006 Recently space division multiple access (SDMA) assisted multiple-input–multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems invoking multiuser detection (MUD) techniques have attracted substantial research interest, which is ...
Hanzo, L, Jiang, M
core +1 more source
Stimulated Brillouin scattering in micro/nanophotonic waveguides and resonators
Nanophotonics, Volume 14, Issue 10, Page 1509-1535, May 2025.Abstract With the ongoing advancement of micro‐ and nanofabrication techniques, there has been a notable revival of interest in the field of stimulated Brillouin scattering within micro‐ and nanoscale waveguide structures in recent years. A variety of micro‐ and nanophotonic devices with different functions have been designed and fabricated, including ...
Linhao Ren +6 more
wiley +1 more source
A DFT-Based Scheme for PAPR Reduction in SR-OFDM Systems
IEEE AccessThis paper focuses on the peak-to-average power ratio (PAPR) reduction in symbol repetition-based orthogonal frequency division multiplexing (SR-OFDM) systems, and a discrete Fourier transform (DFT)-based scheme is proposed to reduce the PAPR of SR-OFDM ...
Haojia Lv
doaj +1 more source
Advanced Materials Technologies, Volume 10, Issue 5, March 4, 2025.This paper reviews the state‐of‐the‐art and recent advances in bio‐integrated wireless power and data transfer technologies for flexible bionics, wearable and implantable bioelectronics. The architectures, operating principles, materials, and application technologies are presented in detail.
Massimo Mariello, Christopher M. Proctor
wiley +1 more source
Scientific Reports, 2022 Filtered-orthogonal frequency division multiplexing (F-OFDM) is one of the most protruding multicarrier modulation (MCM) techniques for fifth-generation and beyond wireless communication.
Ali. F. Almutairi, A. Krishna
doaj +1 more source
Fingerprinting‐Based Indoor Localization in a 3 × 3 Meter Grid Using OFDM Signals at Sub‐6 GHz
Applied AI Letters, Volume 6, Issue 1, February 2025.ABSTRACT Accurately determining the indoor location of mobile devices has garnered significant interest due to the complex challenges posed by non‐line‐of‐sight (NLOS) propagation and multipath effects. To address this challenge, this paper proposes a new approach to indoor positioning that utilises channel state information (CSI) and machine learning (
Jaspreet Kaur +6 more
wiley +1 more source
A Multicarrier Multiplexing Method for Very Wide Bandwidth Transmission
EURASIP Journal on Wireless Communications and Networking, 2006 The multicarrier orthogonal code division multiplexing (MC-OCDM) introduced here has been designed for very wide bandwidth (VWB) point-to-point and point-to-multipoint transmission.
Efthymoglou George, Gerakoulis Diakoumis
doaj
Наука і техніка Повітряних Сил Збройних Сил України, 2021 У статті проаналізовано можливості використання сигналів з Orthogonal frequency division multiplexing (OFDM) модуляцією для організації скритного радіозв’язку в системах спеціального призначення. Побудовано та проаналізовано “образ” сигналу з OFDM модуляцією в псевдофазовому просторі.
openaire +3 more sources
Engineering Reports, Volume 7, Issue 1, January 2025.ABSTRACT Due to the long transmission distance of the constellation network represented by the low‐orbit satellite system, the satellite‐to‐ground link is subject to large path loss and limited communication performance. This paper uses multi‐satellite and multi‐beam joint transmission technology to form a virtual multiplex network with ground multi ...
Yuyang Liu, Tong Shi, Hua Wang
wiley +1 more source