Results 71 to 80 of about 27,142 (205)

Integrated LEO Constellation and In‐Cabin Distribution System for Continuous Aircraft 5G Connectivity

open access: yesInternational Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT The integration of low Earth orbit (LEO) satellite constellations with commercial aircraft communication systems presents critical challenges in maintaining continuous connectivity during dynamic flight conditions. Current geostationary satellite systems suffer from high round‐trip latency (>$$ > $$ 500 ms) and inadequate coverage at high ...
Raúl Parada   +4 more
wiley   +1 more source

Symbol‐Level GRAND‐Assisted Detection for Polar‐Coded Spatial Modulation in MIMO Systems

open access: yesInternational Journal of Communication Systems, Volume 39, Issue 7, 10 May 2026.
This research presents an integrated polar‐coded spatial modulation (PCSM) transceiver scheme for MIMO transmission over Rayleigh fading channels. The proposed architecture employs linear spatial signal processing for antenna and symbol estimation, followed by symbol‐level guessing random additive noise decoding (symbol‐level GRAND)–assisted detection ...
Abhilasha Gautam   +2 more
wiley   +1 more source

Adaptive beamforming assisted dynamic channel allocation [PDF]

open access: yes1999 IEEE 49th Vehicular Technology Conference (Cat. No.99CH36363), 2003
This paper is concerned with the comparative study of fixed channel allocation (FCA) and dynamic channel allocation (DCA) algorithms, many of which were proposed and studied, in terms of the achievable grade-of-service (GOS), by Chuang et al. (1994) throughout the past few years.
Blogh, J.S., Cherriman, P.J., Hanzo, L.
openaire   +2 more sources

Mapping of Physiological Signals From Wireless Battery‐Free Implants With Plane‐Wave Ultrasound Imaging

open access: yesAdvanced Materials Technologies, Volume 11, Issue 9, 6 May 2026.
Combined approach of electromagnetic (Power) and ultrasound (data harvesting) waves is proposed to address the miniaturized ultrasonic implants. Electromagnetic waves trigger the piezoelectric element to generate the acoustic pulse which is modulated by the variations in the sensor's impedance.
Anam Bhatti   +6 more
wiley   +1 more source

Revisiting smart antenna array design with multiple interferers using basic adaptive beamforming algorithms: Comparative performance study with testbed results

open access: yesEngineering Reports, 2021
Smart antennas are becoming popular in the area of cellular wireless communication for capacity enhancement and reduction of the multipath effect and interference. The demand for smart antennas is widely increasing as 5G cellular communication evolves to
SK Imtiaj   +2 more
doaj   +1 more source

Joint Wireless Information and Energy Transfer with Reduced Feedback in MIMO Interference Channels

open access: yes, 2014
To determine the transmission strategy for joint wireless information and energy transfer (JWIET) in the MIMO interference channel (IFC), the information access point (IAP) and energy access point (EAP) require the channel state information (CSI) of ...
Clerckx, Bruno, Park, Jaehyun
core   +1 more source

Knowledge-aided adaptive beamforming

open access: yes2008 IEEE International Conference on Acoustics, Speech and Signal Processing, 2008
In array processing, when the available snapshot number is comparable with or even smaller than the sensor number, the sample covariance matrix R is a poor estimate of the true covariance matrix R. To estimate R more accurately, prior environmental knowledge can be used, which is manifested as knowing an a priori covariance matrix R0.
X. Zhu, J. Li, P. Stoica
openaire   +1 more source

Liver Stiffness Characterization of OGTLKO Mouse Model of Progressive Liver Fibrosis

open access: yesJournal of Ultrasound in Medicine, Volume 45, Issue 5, Page 1069-1082, May 2026.
Objectives O‐GlcNAcylation plays a key regulatory role in hepatic physiology, and its disruption leads to fibrosis in liver‐specific OGT knockout mice (OGTLKO), making this model valuable for studying advanced metabolic dysfunction‐associated steatohepatitis (MASH).
Gilles Renault   +9 more
wiley   +1 more source

Adaptive minimum symbol error rate beamforming assisted receiver for quadrature amplitude modulation systems

open access: yes, 2006
An adaptive beamforming assisted receiver is proposed for multiple antenna aided multiuser systems that employ bandwidth efficient quadrature amplitude modulation (QAM).
Chen, S., Du, H.Q, Hanzo, L.
core  

Low-complexity Location-aware Multi-user Massive MIMO Beamforming for High Speed Train Communications

open access: yes, 2017
Massive Multiple-input Multiple-output (MIMO) adaption is one of the primary evolving objectives for the next generation high speed train (HST) communication system.
Chen, Xuhong, Fan, Pingyi
core   +1 more source

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