Results 41 to 50 of about 90,945 (202)

On the MIMO Capacity for Distributed System under Composite Rayleigh/Rician Fading and Shadowing

open access: yesInternational Journal of Antennas and Propagation, 2015
Wireless channels are commonly affected by short-term fading and long-term fading (shadowing). The shadowing effects must be taken into account also when mobility is present in the wireless scenario.
Santiago González-Aurioles   +4 more
doaj   +1 more source

Calculating the probability of error per symbol on the basis of MGF method using Rician fading for MFSK [PDF]

open access: yesTehnika, 2014
In this paper is presented how to calculate the probability of error per symbol of M-ary non-coherent frequency modulation (M-ary Frequency Shift Keying, MFSK) over a slow, flat, identically independently distributed Rician fading channels.
Mitić Dragan S.   +2 more
doaj   +1 more source

Comparative Systematic Analysis of Gray Matter Biophysical Models on a Public Dataset

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 5, Page 2278-2291, November 2026.
ABSTRACT Purpose Biophysical models of diffusion tailored to characterize gray matter (GM) microstructure are gaining traction in the neuroimaging community. NEXI, SMEX, SANDI, and SANDIX represent recent efforts to account for different microstructural features, such as soma contributions and inter‐compartment exchange, in the diffusion MRI (dMRI ...
Santiago Mezzano   +6 more
wiley   +1 more source

Performance of Generalized Multicarrier DS-CDMA Using Various Chip Waveforms [PDF]

open access: yes, 2003
In this letter, we extend our investigation of generalized multicarrier direct-sequence code-division multiple access by considering two additional types of chip waveforms, namely, the time-domain half-sine and raised-cosine chip waveforms, in addition ...
Yang, L-L., Hanzo, L.
core   +2 more sources

Enabling NOMA in Overlay Spectrum Sharing in Hybrid Satellite-Terrestrial Systems

open access: yesIEEE Access, 2021
In this paper, a hybrid satellite-terrestrial spectrum sharing system allows terrestrial secondary network to cooperate with a primary satellite network and to further provide higher spectrum efficiency.
Anh-Tu Le   +4 more
doaj   +1 more source

Technical Feasibility of IVIM for Prostate Cancer Imaging Using High‐Amplitude Whole‐Body Gradient System With Spiral Readout and Velocity‐Compensated Diffusion Encoding

open access: yesNMR in Biomedicine, Volume 39, Issue 10, October 2026.
The combination of velocity‐compensated diffusion encoding, spiral readout and strong gradients enabled high‐quality prostate IVIM imaging, offering a promising framework for the development of reliable IVIM‐based biomarkers for prostate cancer detection, characterisation and monitoring.
Malwina Molendowska   +6 more
wiley   +1 more source

Analysis of Coded FHSS Systems with Multiple Access Interference over Generalized Fading Channels

open access: yesEURASIP Journal on Wireless Communications and Networking, 2008
We study the effect of interference on the performance of coded FHSS systems. This is achieved by modeling the physical channel in these systems as a block fading channel.
Zummo SalamA
doaj  

Static Output Feedback Control for Fuzzy Systems With Stochastic Fading Channel and Actuator Faults

open access: yesIEEE Access, 2020
This work focuses on the issue of static output feedback control for Takagi-Sugeno (T-S) fuzzy systems in the discrete-time domain. Both the fading channel and actuator faults are determined by a set of stochastic variables.
Yonghong Chen   +4 more
doaj   +1 more source

Energy-Efficient Index Modulation With In-Phase/Quadrature Format in the Generalized Fading Channel

open access: yesIEEE Access, 2021
Dual-mode (DM) or multi-mode (MM) index modulation (IM) techniques with the in-phase/quadrature (IQ) format have been investigated for improving the performance of the orthogonal frequency division multiplexing with IM (OFDM-IM) system in the frequency ...
Mengyi Wang, Zhihui Chen, Zhenxing Chen
doaj   +1 more source

Four Directions, One Solution: Enabling Rapid Diffusion Tensor MRI for Ultra‐Low Field Using Deep Learning

open access: yesMagnetic Resonance in Medicine, Volume 96, Issue 3, Page 1413-1426, September 2026.
ABSTRACT Purpose This study revisits the tetrahedral encoding strategy originally proposed to accelerate Diffusion Tensor Magnetic Resonance Imaging (DT‐MRI) by reducing the requisite number of diffusion‐weighted measurements to four. We examine its practical limitations and explore how artificial intelligence (AI) can extend its utility. Specifically,
Joshua Mawuli Ametepe   +4 more
wiley   +1 more source

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