Results 21 to 30 of about 854,563 (301)

Scalable video transcoding for mobile communications [PDF]

open access: yes, 2013
Mobile multimedia contents have been introduced in the market and their demand is growing every day due to the increasing number of mobile devices and the possibility to watch them at any moment in any place.
Cuenca, Pedro   +5 more
core   +2 more sources

Downlink Transmission Strategies in Power-Splitting SWIPT Distributed MISO Systems

open access: yesIEEE Access, 2018
This paper investigates the joint beamforming and power splitting factor optimization in distributed multiple input single output systems with power-splitting simultaneous wireless information and power transfer (SWIPT).
Huanhuan Mao   +4 more
doaj   +1 more source

Highly Reliable Fuzzy-Logic-Assisted AODV Routing Algorithm for Mobile Ad Hoc Networks

open access: yesSensors, 2021
Due to the noncentered, self-organizing, and self-healing characteristics, mobile ad hoc networks (MANET) have been more and more widely used as an alternative access technology for regions having no fixed infrastructure. On-demand routing protocols (e.g.
Jiamin Li   +4 more
doaj   +1 more source

Non-Orthogonal Unicast and Multicast Transmission for Massive MIMO With Statistical Channel State Information

open access: yesIEEE Access, 2018
We investigate non-orthogonal unicast and multicast (NOUM) transmission for massive multiple-input multiple-output systems, where only statistical channel state information of all user terminals is available at the base station.
Li You   +4 more
doaj   +1 more source

Indoor Positioning for Multiphotodiode Device Using Visible-Light Communications

open access: yesIEEE Photonics Journal, 2016
With the widespread use of light-emitting diodes (LEDs) for lighting, their ability to support communications through visible light has become promising for various wireless applications.
Wei Xu   +4 more
doaj   +1 more source

An Image Rejection Ku-Band CMOS Low Noise Amplifier With Bridged-Tee Band-Stop Filter

open access: yesIEEE Access, 2020
For satellite communication applications, this paper presents an image rejection Ku-band low noise amplifier (LNA) in a 65-nm CMOS process for the Hartley receiver architecture.
Depeng Cheng   +3 more
doaj   +1 more source

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

Mobilizing professional communities

open access: yesPublic Health Reports, 2001
John G. Bartlett, MDa Medical providers play an important role in planning for bioterrorism but have been reluctant participants in most of the planning. The purpose of this review is to summarize the role of practicing medical professionals for bioterrorism defense, identify the reasons for reluctance to participate in the planning process, and ...
openaire   +3 more sources

UAV-Based Intelligent Sensing Over CF-mMIMO Communications: System Design and Experimental Results

open access: yesIEEE Open Journal of the Communications Society
This paper presents an uncrewed aerial vehicle (UAV)-based intelligent sensing system designed to operate within a cell-free massive multiple-input multiple-output (CF-mMIMO) network, addressing key limitations in performing integrated sensing and ...
Jian Sun   +5 more
doaj   +1 more source

Deep Reinforcement Learning for RIS-Aided Multiuser MISO System with Hardware Impairments

open access: yesApplied Sciences, 2022
In this paper, we study a reconfigurable intelligent surface (RIS)-aided multiuser MISO system with imperfect hardware, where the transceiver design is based on the statistical channel state information (CSI).
Wenjie Ma   +4 more
doaj   +1 more source

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