Results 31 to 40 of about 1,206,111 (210)
Journal of Telecommunications and Information Technology, 2016 The realistic wireless channels face combined (time shared) Nakagami-lognormal shadowing and unshadowing fading because of time varying nature of radio channel and mobile user.
Rupender Singh, Meenakshi Rawat
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Power Azimuth Spectrum measurements in home and office environments at 62.4 GHz [PDF]
, 2007 The high demand for unlicensed spectrum mandates the use of higher frequencies, such as the 60 GHz band, where large amounts unlicensed bandwidth exists.
Sarris, I +3 more
core +1 more source
A Spatially Consistent MIMO Channel Model With Adjustable K Factor
IEEE Access, 2019 In the area of research on massive multiple-input multiple-output (MIMO), two assumptions on the wireless channel dominate channel modeling. Either, a rich scattering environment is assumed and the channel is modeled as i.i.d. Rayleigh fading, or, a line
Stefan Pratschner +6 more
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Wireless Three-hop Relay Environment with Line-of-Sight: Investigation and Performance Analysis
Journal of Communications Software and Systems, 2021 Lately, the investigation of multi-hop relays is increased in both, academia and engineering practice. Multi-hop relay is introduced to enable data transmission between base station and mobile user dividing great distance into two or more segments to ...
Dragana Krstic +4 more
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Effective rate analysis of MISO Rician fading channels [PDF]
2012 IEEE 7th Sensor Array and Multichannel Signal Processing Workshop (SAM), 2012 The delay constraints imposed by future wireless applications require a suitable metric for assessing their impact on the overall system performance. Since the classical Shannon's ergodic capacity fails to do so, the so-called effective rate was recently established as a rigorous alternative.
Michail Matthaiou +3 more
openaire +3 more sources
Journal of Intelligent Medicine, EarlyView.SubDIVIDE integrates a physics‐consistent DIVIDE subspace directly into MRI reconstruction. By embedding a low‐rank basis derived from a large DIVIDE signal dictionary into a joint ADMM optimization—together with composite sensitivity maps that absorb inter‐b‐value phase errors—the framework recovers quantitative microstructural maps from highly ...
Cheng Yang +4 more
wiley +1 more source
Известия высших учебных заведений России: Радиоэлектроника, 2022 Introduction. There exists a technique for estimating the dependence of communication reliability in a shortwave radio-frequency transmission channel (SWRC) with a single discrete beam and diffuse wave scattering across small-scale ionospheric ...
V. P. Pashintsev +3 more
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Reference‐Superimposed Reconstruction (RS‐Recon) for Arterial Spin Labeling
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose Conventional arterial spin labeling (ASL) reconstruction suffers from sign‐flipping errors and/or noise bias under strong background suppression (BS), limiting SNR optimization. We propose reference‐superimposed reconstruction (RS‐recon) to enable ideal BS and robust signal recovery.
Jia Guo
wiley +1 more source
DronesThis paper proposes a drone-assisted NOMA communication system equipped with a reconfigurable intelligent surface (RIS). Given the Line-of-Sight nature of the Air-to-Ground link, a more realistic Rician fading environment is chosen for the study of ...
Suoping Li +3 more
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Performance Analysis for Continuous Antennas in Rician Channels
IEEE Wireless Communications LettersAntenna arrays with discrete antenna elements have been conventionally used in multiple-input multiple-output (MIMO) communications. Improved spectral efficiency resulting from more antenna elements has motivated the idea of packing very large numbers of elements in an array, yielding continuous-like antennas. This paper conducts a performance analysis
Smith, PJ +3 more
openaire +3 more sources