Results 81 to 90 of about 67,114,416 (300)

IEEE COMMUNICATIONS LETTERS

open access: yes, 2015
IEEE Communications Letters IEEE Communications Letters publishes letters on the frontiers of research within the Field of Interest of the IEEE Communications Society in a timely ...
ANDREA GIORGETTI
core  

Inband Full-Duplex Radio Transceivers: A Paradigm Shift in Tactical Communications and Electronic Warfare?

open access: yes, 2017
Inband FD operation has great potential in civilian/commercial wireless communications, because it can as much as double transmission links° spectral efficiency by exploiting the newfound capability for STAR that is facilitated by advanced SIC techniques.
Taneli Riihonen   +11 more
core   +1 more source

Pointlike Material Accumulation and Displacement in Azopolymer Thin Films Driven by Spatial Light Modulation

open access: yesAdvanced Optical Materials, EarlyView.
A maskless, SLM‐driven approach enables the deterministic inscription of arbitrary topographical features in azopolymer films by mapping complex vectorial light fields onto local viscoplastic stress. This platform allows for the rapid generation and dynamic erasure of high‐aspect‐ratio micro‐spikes, offering a versatile tool for reconfigurable flat ...
Jonas Strobelt   +3 more
wiley   +1 more source

NETWORK CODED COOPERATION FOR DEEP SPACE NETWORKS

open access: yesElectrica, 2019
In this paper, we investigate the disruptive effects of solar scintillation in Deep Space Networks (DSNs) and we apply Network Coded Cooperation (NCC) in DSNs to improve the throughput, the robustness and the security of the communication systems ...
Tuana Ensezgin   +3 more
doaj   +2 more sources

Energy Optimization Algorithms for MIMO-OFDM Based Downlink C-RAN System

open access: yesIEEE Access, 2019
In this paper, we consider a green communication design in a multiple-input-multiple-output orthogonal frequency-division multiplexing-based downlink cloud radio access network system with per-user quality of service constraints and remote antenna units (
Ruohong Guo   +4 more
doaj   +1 more source

Emerging Optical Wireless Communications-Advances and Challenges

open access: yes, 2015
New data services and applications are emerging continuously and enhancing the mobile broadband experience. The ability to cope with these varied and sophisticated services and applications will be a key success factor for the highly demanding future ...
Ghassemlooy, Zabih   +8 more
core   +1 more source

Dynamic Fluorescence Modulation via Light‐Driven Competitive Protonation

open access: yesAdvanced Optical Materials, EarlyView.
A two‐component molecular system demonstrates reversible, light‐driven fluorescence write–erase cycling and thermal imaging. Illumination of a merocyanine photoacid transfers a proton to a highly efficient fluorescent pyridinium dye, switching its emission color; thermal relaxation reverses the process in the dark.
Serena X. Liu   +10 more
wiley   +1 more source

Summary of Research 1995, Interdisciplinary Academic Groups (Command, Control & Communications Academic Group, Electronic Warfare Academic Group, Space Systems Academic Group and Undersea Warfare Academic Group) [PDF]

open access: yes, 1995
The views expressed in this report are those of the authors and do not reflect the official policy or position of the Department of Defense or the U.S. Government.This report contains information of research projects in the four interdisciplinary groups,
Faculty of the Academic Groups
core   +1 more source

Extended MAGTF Operations Aerial Layer Communications Experimentation [PDF]

open access: yes, 2015
Capt Jamie Claflin, USMC, Prof Gurminder Singh, Prof. John Gibson, GSOIS, Research Associate Charles PrinceThis research explored current and emerging aerial layer communications, such as balloons or small form factor aerostats (tethered and untethered ...
GSOIS   +4 more
core  

Basis‐Independent Geometric Phase Modulation in Circularly Birefringent Plasmonic Structures

open access: yesAdvanced Optical Materials, EarlyView.
Here we introduce a plasmonic metasurface composed of spatially rotated chiral spiral unit cells designed to produce space‐variant circular retardance. This generates a geometric phase ramp equivalent to a blazed grating, leading to polarization dependent diffraction orders in momentum space.
Pasha Goz   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy