Results 41 to 50 of about 60,608 (216)

Utilization of Compressed Sampling for PAPR Reduction in OFDM IEEE-802.11a System

Journal of Communications Software and Systems, 2021
Being spectrally efficient, easily implemented, and highly immune to selective channel imperfections and multipath fading, the Orthogonal Frequency Division Multiplexing (OFDM) can provide a sufficiently robust and high data rate modulation technique for
Hussein Al-Moukhles
doaj   +1 more source

Reconfigurable Intelligent Surfaces (RIS) and Their Role in Next‐Generation Wireless Networks: An Overview

Transactions on Emerging Telecommunications Technologies, Volume 36, Issue 6, June 2025.
This paper explicitly reviews the state‐of‐the‐art RIS‐assisted wireless networks, especially open challenges relating to the B5G and 6G networks. This work presents an intensive study of recent research on RIS to provide an in‐depth understanding of the underlying principles surrounding RIS operations, composition, and effect on EM waves.
Chukwuemeka Nwufo, Oluyomi Simpson, Yichuang Sun   +2 more
wiley   +1 more source

Comparative Test of Novel Fluorescent Optical Antennas for LED‐ and Laser‐Based Optical Wireless Communications

Advanced Optical Materials, Volume 13, Issue 13, May 5, 2025.
New fluorescent optical antennas are realized and tested for diverse Optical Wireless Communication (OWC) applications. The fluorescent concentrator slabs, based on different organic fluorophores, convert and convey the digital data conveyed through intensity modulation of incoming light toward a small‐area photodiode.
Marco Meucci, Mauro Aresti, Giulio Cossu, Lorenzo Gilli, Luca Oliviero, Matteo Bartolini, Andrea Pucci, Ernesto Ciaramella, Jacopo Catani   +8 more
wiley   +1 more source

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, Yujin Park, Nasir Mahmood, Joohoon Kim, Dohyun Kang, Rehan Hafiz, Dongliang Gao, Humberto Cabrera, Muhammad Zubair, Muhammad Qasim Mehmood, Lei Gao, Junsuk Rho   +11 more
wiley   +1 more source

Superposed IM-OFDM (S-IM-OFDM): An Enhanced OFDM for Integrated Sensing and Communications

IEEE Transactions on Vehicular Technology
Integrated sensing and communications (ISAC) is a critical enabler for emerging 6G applications, and at its core lies in the dual-functional waveform design. While orthogonal frequency division multiplexing (OFDM) has been a popular basic waveform, its primitive version falls short in sensing due to the inherent unregulated auto-correlation properties.
Zonghui Yang, Shijian Gao, Xiang Cheng, Liuqing Yang   +3 more
openaire   +3 more sources

Wireless Power and Data Transfer Technologies for Flexible Bionic and Bioelectronic Interfaces: Materials and Applications

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

Analysis of the Impact of WiMAX-OFDM Interference on Multiband OFDM [PDF]

2007 IEEE International Conference on Ultra-Wideband, 2007
This paper presents an analysis of the performance of the multiband orthogonal frequency division multiplexing (MB-OFDM) system for ultra wideband (UWB) communication in the presence of interference from an IEEE 802.16 WiMAX-OFDM system operating in the 3.5 GHz band. Recent work (Hu & Beaulieu, IEEE Trans. Commun., Oct.
Robert Schober, Lutz Lampe, Christopher Harris Snow   +2 more
openaire   +1 more source

PAPR Reduction using Genetic Algorithm in OFDM System

Applications of Modelling and Simulation, 2018
Orthogonal frequency division multiplexing (OFDM) is a multicarrier modulation technique that relies on orthogonality feature to increase transmission data rate while enhancing spectral efficiency at the same time. OFDM’s major issue is the high peaks or
Aeizaal Azman A. Wahab, Hazmarini Husin, W. A. F. W. Othman, S. S. N. Alhady, Fatin Najwa Nursyadza   +4 more
doaj  

Performance Evaluation of WDM Optical Fiber Communication System in the presence of PMD

UKH Journal of Science and Engineering, 2021
This paper investigates for rising optical fiber transmission strength, increasing bandwidth, and decreasing communication system weakness by using wavelength division multiplexing (WDM).
Nawroz I. Hamadamen
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, Kang Tan, Muhammad Z. Khan, Olaoluwa R. Popoola, Muhammad A. Imran, Qammer H. Abbasi, Hasan T. Abbas   +6 more
wiley   +1 more source