Results 201 to 210 of about 106,059 (313)

A Polarization-Modulated Information Metasurface for Encryption Wireless Communications. [PDF]

Adv Sci (Weinh), 2022
Wang HL, Ma HF, Cui TJ.
europepmc   +1 more source

Low‐Complexity Hybrid Beamforming for LEO Satellites: Beam Update Rate Analysis and Advanced Adaptive Precoding

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Low Earth Orbit (LEO) satellite constellations offer unprecedented opportunities for global broadband connectivity but pose significant beamforming challenges due to rapid platform motion and stringent onboard hardware constraints. Fully digital architectures, while optimal in theory, remain impractical for satellite payloads, motivating ...
Mohammad Momani, Thomas Delamotte, Andreas Knopp   +2 more
wiley   +1 more source

Protocol-Agnostic Meta Key Distribution for Encrypted Wireless Communications Enabled by Space-Time-Coding Metasurface. [PDF]

Adv Sci (Weinh)
Li X, Chen L, Shen G, Zhao K, Gu Z, Ma Q, You JW, Cui TJ.   +7 more
europepmc   +1 more source

A Conformal Tri-Band Antenna for Flexible Devices and Body-Centric Wireless Communications. [PDF]

Micromachines (Basel), 2023
Awan WA, Abbas A, Naqvi SI, Elkamchouchi DH, Aslam M, Hussain N.   +5 more
europepmc   +1 more source

Directive Antenna Clutter Loss in Slant Paths

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT This paper investigates the development of a clutter loss model specifically for slant paths involving directive antennas. Conventionally, clutter loss is characterized by using isotropic antennas to facilitate standard link budget calculations via single antenna gain values.
Fernando Pérez Fontán, Vicente Pastoriza‐Santos, Fernando Machado Domı́nguez, Thomas Prechtl, Pavel Pechac   +4 more
wiley   +1 more source

Shape-optimized metasurface beamformer for high-efficiency full-duplex optical wireless communications across an ultra-wide field-of-view. [PDF]

Nat Commun
Yuan Z, Chen J, Wang Y, Wu Y, Li M, Chen S, Chen C, You X, Zhang Z.   +8 more
europepmc   +1 more source

Superdirective Wideband Array of Circular Monopoles with Loaded Patches for Wireless Communications. [PDF]

Sensors (Basel), 2023
Lu P, Liu Z, Lei E, Huang K, Song C.
europepmc   +1 more source

CLEAR Interference Cancellation in a Wideband Dual‐Channel Receiver for Independent Satellite Multi‐Connectivity Links

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT In this paper, the correlation learning estimation and adaptive reduction (CLEAR) of interference, an adaptive, blind and transparent interference compensation method applied in a wideband dual‐channel receiver, is studied for a pair of independent satellite multi‐connectivity links, using the same carrier frequency and signal bandwidth in use
Svilen Dimitrov
wiley   +1 more source

Recent Advances in Metasurfaces: From THz Biosensing to Microwave Wireless Communications. [PDF]

Research (Wash D C)
Wang Y, Zhang X, Wang Y, Liu Y, Li J, Chen X, Cui Z, Burokur SN, Zhang J, Zhao X, Zhang K, You Z.   +11 more
europepmc   +1 more source

Comparison of different New Radio (NR) waveforms for wireless communications. [PDF]

PLoS One, 2023
Baki AKM.
europepmc   +1 more source