Results 81 to 90 of about 554,039 (299)

Vision‐Augmented Wearable Interfaces: Bioinspired Approaches for Realistic AI‐Human‐Machine Interaction

open access: yesAdvanced Materials Technologies, EarlyView.
This review presents recent progress in vision‐augmented wearable interfaces that combine artificial vision, soft wearable sensors, and exoskeletal robots. Inspired by biological visual systems, these technologies enable multimodal perception and intelligent human–machine interaction.
Jihun Lee   +4 more
wiley   +1 more source

Distributed beamforming algorithm based on game theory in device-to-device communications

open access: yesInternational Journal of Distributed Sensor Networks, 2018
In the device-to-device communication network, there is the interference problem when device-to-device users share the same spectrum with cellular users, a distributed beamforming scheme based on non-cooperative game is proposed to maximize weighted sum ...
Xian-zhong Xie   +4 more
doaj   +1 more source

Device-to-Device Communications in Unlicensed Spectrum: Mode Selection and Resource Allocation

open access: yesIEEE Access, 2016
In this paper, a novel technology, namely, device-to-device communications in the unlicensed spectrum (D2D-U) is proposed, which can allow D2D users to transmit on the unlicensed spectrum and coexist with the incumbent Wi-Fi networks.
Rui Liu   +3 more
doaj   +1 more source

Device-to-Device Communication: A Primer

open access: yes, 2021
Abstract The wireless technology is increasingly being adopted and integrated into the fabric of our daily life. At the moment, the number of wireless hand-held devices is radically increasing, with a corresponding rising demand for higher data rate applications.
M. N. O. Sadiku   +2 more
openaire   +1 more source

Reconfigurable Intelligent Surface Assisted Device-to-Device Communications

open access: yes, 2020
With the evolution of 5G, 6G and beyond, device-to-device (D2D) communications have been developed as an energy-, and spectrum-efficient solution. However, D2D links are allowed to share the same spectrum resources with cellular links, which will bring ...
Zhang, Hongliang   +6 more
core   +1 more source

Coupling of Er3+ ions and Plasmonic Modes in Vertical Nanocavities for Spectral Broadening in Telecom Bands

open access: yesAdvanced Materials Technologies, EarlyView.
Left: Illustration of the glass & nanostructures system and the NIR emission at 1.5 µm, where the colored spheres represent the Er3+ ions within the doped glass. Right: Representation of the Stark splitting of the 4I13/2 and 4I15/2 manifolds of the Er3+, illustrating how the plasmonic modes facilitate the emission from the broader Stark manifold ...
Gaston Lozano Calderón   +5 more
wiley   +1 more source

Device-to-Device Communication Underlaying Cellular Communications Systems

open access: yesInternational Journal of Communications, Network and System Sciences, 2009
In this article we propose to facilitate local peer-to-peer communication by a Device-to-Device (D2D) radio that operates as an underlay network to an IMT-Advanced cellular network. It is expected that local services may utilize mobile peer-to-peer communication instead of central server based communication for rich multimedia services.
Pekka Jänis   +7 more
openaire   +2 more sources

Device-to-device data storage with regenerating codes

open access: yes, 2015
Caching data files directly on mobile user devices combined with device-to-device (D2D) communications has recently been suggested to improve the capacity of wireless networks.
Joonas Pääkkönen   +5 more
core   +1 more source

Device to Device Communications for Smart Grid

open access: yes, 2020
This thesis identifies and addresses two barriers to the adoption of Long Term Evolution (LTE) Device-to-Device (D2D) communication enabled smart grid applications in out of core network coverage regions.
Shimotakahara, Kevin
core   +1 more source

Spectrally Encoded Proximity‐Field Nanopatterning

open access: yesAdvanced Optical Materials, EarlyView.
Spectrally encoded proximity‐field nanopatterning (SEPN) enables continuous control of the out‐of‐plane periodicity of 3D photonic crystals by tuning the exposure wavelength while maintaining a fixed in‐plane period. This decouples near‐infrared reflectance from visible iridescence and allows fabrication of integrated multipattern devices with ...
Junhyung Park   +6 more
wiley   +1 more source

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