Results 121 to 130 of about 12,663 (309)

Fully Programmable Slow Light Based on a Spinor Representation of Generalized Coupled‐Resonator‐Induced Transparency

Advanced Science, EarlyView.
A programmable coupled‐resonator‐induced transparency (CRIT) platform is proposed, generalizing classical electromagnetically induced transparency (EIT) via a spinor representation. By utilizing dual‐channel gauge fields and universal unitary operations, this architecture enables dynamically engineered, reconfigurable slow‐light bands on a silicon ...
Seungkyun Park, Beomjoon Chae, Hyungchul Park, Sunkyu Yu, Xianji Piao, Namkyoo Park   +5 more
wiley   +1 more source

Link layer protocol performance of indoor infrared wireless communications [PDF]

The increasing deployment of portable computers and mobile devices leads to an increasing demand for wireless connections. Infrared presentsseveral advantagesover radio for indoor wireless connectivity but infrared link quality is affected by ambient ...
Vitsas, Vasileios
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Non‐Uniform Space‐Time‐Coding Modulation for Low‐Complexity Diagnostics of Reconfigurable Intelligent Surfaces

Advanced Electronic Materials, EarlyView.
A diagnostic method for reconfigurable intelligent surfaces (RIS) based on non‐uniform space‐time‐coding modulation is presented. Fault localization is achieved via amplitude‐only spectral measurements, eliminating the need for complex signal processing. A one‐to‐one mapping between harmonic components and RIS elements enables accurate detection.
Xiao Qing Chen, Lei Zhang, Yi Ning Zheng, Bing Bing Zhu, Marco Rossi, Giuseppe Castaldi, Shuo Liu, Vincenzo Galdi, Tie Jun Cui   +8 more
wiley   +1 more source

Caught in the web : an analysis of South Africa's response to the emerging global information policy regime [PDF]

, 2008
Includes bibliographical references (leaves 122-126).This study provides a descriptive analysis of South Africa's response to the emerging global information policy regime.
Ranchod, Yudhvir
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Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective

Advanced Electronic Materials, EarlyView.
Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe, Ivan Iudice, Giuseppe Castaldi, Marco Di Renzo, Vincenzo Galdi   +4 more
wiley   +1 more source

FR3 OFDM Multistatic ISAC Geometry-Aware Multi-Link Fusion and CRLB-Guided Design

IEEE Open Journal of the Communications Society
This paper presents a geometry-aware multi-link fusion framework for multistatic integrated sensing and communication (ISAC) in urban Frequency Range 3 (FR3) orthogonal frequency-division multiplexing (OFDM) channels, aligned with International Mobile ...
Shiv Shankar, Radha Krishna Ganti, J. Klutto Milleth   +2 more
doaj   +1 more source

The Case for Deep Space Telecommunications Relay Stations [PDF]

, 2004
Each future mission to Jupiter and beyond must carry the traditional suite of telecommunications systems for command and control and for mission data transmission to earth.
Chandler, Charles W., Miranda, Felix A.
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Photoresponse Properties of Ambipolar Transport in WSe2 Field‐Effect Transistors

Advanced Electronic Materials, EarlyView.
This study explores the photoresponse of WSe2 ambipolar field‐effect transistors, which exhibit unipolar, saturation, and ambipolar transport regions. Light illumination induces a shift of critical voltage with enhanced photocurrent generation driven by the photogating effect without the material degradation seen in avalanche photodetectors. This study
Jongeun Yoo, Seongmin Ko, Sunggyu Ryoo, Jaehyoung Park, Jaeyoung Kim, Juntae Jang, Jinwoo Sim, Donguk Kim, SeungNam Cha, Chongwu Zhou, Kyungjune Cho, Takhee Lee   +11 more
wiley   +1 more source

Comparative Evaluation of Radio Network Planning for Different 5G-NR Channel Models on Urban Macro Environments in Quito City

IEEE Access
The 5th-Generation New Radio (5G-NR) network have been widely deployed around the world in the frequency range 1/range 2 bands. Once specific frequency bands within these ranges can vary across different countries and regions due to regulatory ...
Valdemar Ramon Farre Guijarro, Jose David Vega Sanchez, Martha Cecilia Paredes Paredes, Felipe Grijalva Arevalo, Diana Pamela Moya Osorio   +4 more
doaj   +1 more source

Innovation and privatization in the telecommunications industry [PDF]

, 2000
Thesis (M.B.A.)--Massachusetts Institute of Technology, Sloan School of Management, 2000.Includes bibliographical references (leaves 62-64).The worldwide liberalization of the telecommunications industry has accelerated due to an explosion of ...
Dyer, Jane L. (Jane Lee), 1956-
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