Results 11 to 20 of about 67,512 (308)

Beam Domain MIMO-OFDM Optical Wireless Communications With PAPR Reduction

open access: yesIEEE Photonics Journal, 2023
Multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM), confirmed as an efficient technique, has been applied in optical wireless communications (OWCs) to improve the transmission rate.
Chen Sun   +5 more
doaj   +1 more source

What’s mobile in mobile communication? [PDF]

open access: yesMobile Media & Communication, 2013
Interrogating the terminology of “mobile” communication, this article notes that media and communicative practices have been mobile for millennia. What’s mobile about cell phones and other current mobile media is a new range of contexts in which personally meaningful and socially consequential interactions become possible.
openaire   +3 more sources

Energy Efficiency and Spectral Efficiency Tradeoff in Massive MIMO Multicast Transmission with Statistical CSI

open access: yesEntropy, 2020
As the core technology of 5G mobile communication systems, massive multi-input multi-output (MIMO) can dramatically enhance the energy efficiency (EE), as well as the spectral efficiency (SE), which meets the requirements of new applications.
Bin Jiang   +5 more
doaj   +1 more source

Low-complexity beam-domain channel estimation and power allocation in hybrid architecture massive MIMO systems

open access: yesEURASIP Journal on Wireless Communications and Networking, 2019
In this journal, we investigate the beam-domain channel estimation and power allocation in hybrid architecture massive multiple-input and multiple-output (MIMO) communication systems.
Xiao Chen   +3 more
doaj   +1 more source

Near Optimal Timing and Frequency Offset Estimation for 5G Integrated LEO Satellite Communication System

open access: yesIEEE Access, 2019
The integration of satellite and terrestrial 5G networks aims to provide ubiquitous coverage, improve service reliability, and enable the network scalability.
Wenjin Wang   +5 more
doaj   +1 more source

Empowering Community Settings and Community Mobilization

open access: yesCommunity Development, 2009
Empowering community settings exist in many community domains. One domain includes groups and organizations that empower oppressed citizens to challenge societal culture and institutions, and take ...
FEDI, Angela, Mannarini T., Maton K.
openaire   +3 more sources

Overlapping Coalition Formation Games for Joint Interference Management and Resource Allocation in D2D Communications

open access: yesIEEE Access, 2018
In this paper, an overlapping coalition formation game is proposed to conduct joint interference management and resource allocation in device-to-device (D2D) communications.
Jinming Hu   +5 more
doaj   +1 more source

Use of a Rapid Method for Achieving Optimal Sensing Duration and Analysis of Data Rate Loss of Cognitive Radio Due to CLT

open access: yesIEEE Access, 2018
The central limit theorem (CLT)-based Gaussian approximation facilitates the probability analysis of cognitive radio (CR), but it incurs data rate loss due to the inaccurate configuration of the optimal sensing duration (OSD).
Bin Gu   +4 more
doaj   +1 more source

Energy Efficiency Optimization in Massive MIMO Secure Multicast Transmission

open access: yesEntropy, 2020
Herein, we focus on energy efficiency optimization for massive multiple-input multiple-output (MIMO) downlink secure multicast transmission exploiting statistical channel state information (CSI). Privacy engineering in the field of communication is a hot
Bin Jiang   +5 more
doaj   +1 more source

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

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