Results 71 to 80 of about 301,173 (181)

Machine learning-based intelligent localization technique for channel classification in massive MIMO

open access: yesDiscover Internet of Things
Multiple-input multiple-output (MIMO) technology has been widely adopted in wireless communications, which enables the simultaneous transmission of multiple data streams via multiple transmitting and receiving antennas.
Fadhil Ghrabat   +2 more
doaj   +1 more source

A speech-driven embodied entrainment character system for supporting line-of-sight interaction using an interaction-activated communication model

open access: yesNihon Kikai Gakkai ronbunshu, 2016
Line-of-sight such as gaze and eye-contract plays an important role to enhance the embodied interaction and communication through avatars. In addition, many eyeball movement models and communication systems using avatars with the line-of-sight have been ...
Yoshihiro SEJIMA   +2 more
doaj   +1 more source

Cluster Masses Accounting for Structure along the Line of Sight

open access: yes, 2003
Weak gravitational lensing of background galaxies by foreground clusters offers an excellent opportunity to measure cluster masses directly without using gas as a probe.
C. Heymans   +25 more
core   +1 more source

A Line of Sight Approach to Cosmic Microwave Background Anisotropies

open access: yes, 1996
We present a new method for calculating linear cosmic microwave background (CMB) anisotropy spectra based on integration over sources along the photon past light cone.
Seljak, Uros, Zaldarriaga, Matias
core   +2 more sources

Reliability of line-of-sight radio-relay systems

open access: yesJournal of Telecommunications and Information Technology, 2006
The modern radio transmission systems are specifically designed for catching principally two main objectives: on one side to provide a radio solution for long distance where large configurations are required to fulfill the high capacity transmissions ...
Jan Bogucki, Ewa Wielowieyska
doaj   +1 more source

Multi-Agent Deployment for Visibility Coverage in Polygonal Environments with Holes [PDF]

open access: yes, 2010
This article presents a distributed algorithm for a group of robotic agents with omnidirectional vision to deploy into nonconvex polygonal environments with holes. Agents begin deployment from a common point, possess no prior knowledge of the environment,
Bullo, Francesco   +2 more
core  

Fading Duration in Line-of-sight Radio Links at 6 GHz

open access: yesJournal of Telecommunications and Information Technology, 2013
Broadband fixed wireless access, local multipoint distribution service networks are promising wireless solutions to connect fixed users to the backbone network instead of wired copper or fiber optic networks, via point-to-multipoint cellular networks ...
Jan Bogucki, Ewa Wielowieyska
doaj   +1 more source

A Compton-thin Solution for the Suzaku X-ray Spectrum of the Seyfert 2 Galaxy Mkn 3

open access: yes, 2015
Mkn 3 is a Seyfert 2 galaxy that is widely regarded as an exemplary Compton-thick AGN. We study the Suzaku X-ray spectrum using models of the X-ray reprocessor that self-consistently account for the Fe K$\alpha$ fluorescent emission line and the ...
Gottlieb, A.   +4 more
core   +1 more source

A Low-Complexity Solution for Optimizing Binary Intelligent Reflecting Surfaces towards Wireless Communication

open access: yesFuture Internet
Intelligent Reflecting Surfaces (IRSs) enable us to have a reconfigurable reflecting surface that can efficiently deflect the transmitted signal toward the receiver.
Santosh A. Janawade    +5 more
doaj   +1 more source

Path Profile Analysis of a LOS System Using 3-D Digital Map

open access: yesمجلة النهرين للعلوم الهندسية, 2008
Exponential growth of mobile communications, radio links and wireless networks has increased interest in many topics in radio propagation. Much effort is now devoted to refine radio propagation path-loss models for urban, suburban, and other environments
Jabir S. AZIZ, Saba T. HAMADA
doaj  

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