Results 51 to 60 of about 4,006 (196)

A Printed Wide‐Slot Antenna With Modified Tuning Stub and Parasitic Elements for Glucose Sensing Applications

Engineering Reports, Volume 8, Issue 7, July 2026.
A compact printed wide‐slot antenna with a diamond‐shaped tuning stub and parasitic elements achieves an ultrawide impedance bandwidth of 256% (2.4–16.2 GHz). Its capacitive nature enables frequency shifts with dielectric variations, making it highly suitable for accurate, non‐invasive glucose sensing applications.
A. K. Arya, Rao Shahid Aziz, Ali M. Almuhlafi, Hamsakutty Vettikalladi, Zhenzhen Jiang, Arjun Kumar, Vipin Balyan, Gunjan Gupta   +7 more
wiley   +1 more source

Beyond 5G and Non‐terrestrial Network (NTN) Integrated Architecture: Access Challenges for Expanding Artificial Intelligence of Things (AIoT)

International Journal of Satellite Communications and Networking, Volume 44, Issue 4, Page 378-393, July/August 2026.
ABSTRACT This study analyzes the architecture of the beyond 5G‐NTN (Non‐terrestrial Network) integrated network and presents the technical, legal, and regulatory challenges and considerations for expanding the Artificial Intelligence of Things (AIoT) ecosystem.
Byung Woon Kim, Ga Eun Choi
wiley   +1 more source

Dynamic Scheduling and Power Allocation with Random Arrival Rates in Dense User-Centric Scalable Cell-Free MIMO Networks

Mathematics
In this paper, we address scheduling methods for queue stabilization and appropriate power allocation techniques in downlink dense user-centric scalable cell-free multiple-input multiple-output (CF-MIMO) networks.
Kyung-Ho Shin, Jin-Woo Kim, Sang-Wook Park, Ji-Hee Yu, Seong-Gyun Choi, Hyoung-Do Kim, Young-Hwan You, Hyoung-Kyu Song   +7 more
doaj   +1 more source

A Joint Channel Modeling, Parameter Estimation and Geometry‐Based Indoor Localization for 5G Systems

Transactions on Emerging Telecommunications Technologies, Volume 37, Issue 6, June 2026.
We propose an end‐to‐end method to accurately localize mobile stations in indoor scenarios, such as those found in Industry 4.0. To this end, we jointly perform wireless channel modeling considering mmWave and MIMO technologies, parameter estimation in 3D, and simple and fine‐grained geometry‐based localization.
Paulo Francisco da Conceição, Rodrigo Pinto Lemos, Flávio Geraldo Coelho Rocha   +2 more
wiley   +1 more source

Review of millimeter‐wave and terahertz near‐field synthetic aperture radar imaging technology

InfoScience, Volume 3, Issue 2, June 2026.
Abstract This paper comprehensively reviews the development of millimeter‐wave (MMW) and terahertz (THz) near‐field imaging technologies, with an emphasis on the state of synthetic aperture radar (SAR)‐based imaging technologies. Near‐field imaging technologies are categorized into passive and active imaging modes, among which active imaging is favored
Qi Yang, Hongqiang Wang, Xu Chen, Xin Peng   +3 more
wiley   +1 more source

MIMO Antennas for Smart 5G Devices [PDF]

, 2018
This paper presents the design of 8 x 8 MIMO antennas for future 5G devices such as smart watches and dongles etc. Each antenna of the MIMO configuration occupies 3 x 4 mm2 and is printed on the top layer of the substrate in the form of a rotated H ...
Chen, Xiaodong, Perwaiz, A, Shoaib, N, Khattak, RY, Shoaib, S, Perwaiz, Aqib, Shoaib, Imran, Shoaib, I, Chen, X, Shoaib, Nosherwan, Khattak, Riqza Y. Y., Shoaib, Sultan   +11 more
core   +1 more source

Frozen Differential Scattering in Reconfigurable Complex Media

Laser &Photonics Reviews, Volume 20, Issue 11, 5 June 2026.
A localized perturbation universally results in a rank‐one update of the scattering matrix of any complex medium. The resulting differential output wavefront is “frozen”: its spatial pattern is fixed (agnostic to the input wavefront). Experiments with a programmable‐metasurface‐parametrized wireless link validate frozen differential scattering and ...
Philipp del Hougne
wiley   +1 more source

Symbol‐Level GRAND‐Assisted Detection for Polar‐Coded Spatial Modulation in MIMO Systems

International Journal of Communication Systems, Volume 39, Issue 7, 10 May 2026.
This research presents an integrated polar‐coded spatial modulation (PCSM) transceiver scheme for MIMO transmission over Rayleigh fading channels. The proposed architecture employs linear spatial signal processing for antenna and symbol estimation, followed by symbol‐level guessing random additive noise decoding (symbol‐level GRAND)–assisted detection ...
Abhilasha Gautam, Prabhat Thakur, Ghanshyam Singh   +2 more
wiley   +1 more source

Downlink MBER transmit beamforming design based on uplink MBER receive beamforming for rank-deficient TDD-SDMA systems

, 2010
The downlink minimum bit error rate (MBER) transmit beamforming is directly designed based on the uplink MBER receive beamforming solution for time division duplex (TDD) space-division multiple-access (SDMA) induced multiple-input multiple-output (MIMO ...
Yang, Lie-Liang, Chen, Sheng
core  

Study of radio resource sharing for future mobile WiMAX applications with relays [PDF]

, 2007
WiMAX (802.16e) is technically capable of offering city-wide broadband connections to a high number of mobile terminals. The technology has strong industrial support, however a number of challenges remain to be resolved.
Nix, AR, Y. Bian, Bian, YQ, Y. Sun, P. Strauch, A. Nix, Sun, Y, Strauch, P   +7 more
core   +1 more source