Results 1 to 10 of about 109,418 (318)

Propagation studies for mobile-to-mobile communications [PDF]

open access: yesIEEE 54th Vehicular Technology Conference. VTC Fall 2001. Proceedings (Cat. No.01CH37211), 2002
This paper addresses a number of key issues that affect the modelling of propagation in mobile-to-mobile communications. Current examples of such systems include intelligent relaying, Bluetooth and other ad-hoc solutions. The key difference in mobile-to-mobile communications is that both transmit and receive antennas are likely to be closer to the ...
Timothy J. Harrold   +2 more
openaire   +3 more sources

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

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

Spectrum-Efficient Coherent Photonic Terahertz Transmission System Based on Subcarrier Multiplexing With Offset Quadrature Amplitude Modulation

open access: yesIEEE Photonics Journal
To overcome the spectral efficiency (SE) limitations of conventional subcarrier multiplexing (SCM) caused by guard bands, a spectrum-efficient coherent photonic terahertz (THz) transmission system based on SCM with offset quadrature amplitude modulation (
Zhuoxin Li   +10 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

Reinventing Mobile Community Computing and Communication [PDF]

open access: yes2013 12th IEEE International Conference on Trust, Security and Privacy in Computing and Communications, 2013
In less than a decade, smartphones and mobile applications spread like wildfire and dramatically improved aspects of our professional and private lives, from efficiency to safety. However, these applications are still in their infancy and mostly provide mobile versions of online Internet services or arcade games.
Yann Busnel   +4 more
openaire   +1 more source

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