Results 21 to 30 of about 14,989 (194)
BER Performance of MIMO-FTN-OWC Communication over Log-normal Fading Channel
Guangtongxin yanjiu, 2022 Faster-than-Nyquist (FTN) technology can improve the spectral efficiency of Optical Wireless Communications (OWC). However, it is affected by the artificially introduced Inter-Symbol Interference (ISI) and atmospheric turbulence, which leads to the ...
Wen-wen LI +4 more
doaj +1 more source
IEEE Signal Processing Magazine, 2008 Radio regulatory bodies are recognizing that the rigid spectrum assignment granting exclusive use to licensed services is highly inefficient, due to the high variability of the traffic statistics across time, space, and frequency. Recent Federal Communications Commission (FCC) measurements show that, in fact, the spectrum usage is typically ...
Gesualdo Scutari +2 more
openaire +3 more sources
A Survey on Physical Layer Performance of MIMO-WiMAX [PDF]
E3S Web of ConferencesThe IEEE 802.16 WiMAX standard for BWA (Broadband Wireless Access) was designed to offer end users high transmission data rates across wider regions.Wireless communication requires MIMO systems because they enable data to be sent and received through ...
Naveena A., Divya Udataneni
doaj +1 more source
Spatial Multiplexing for MIMO/Massive MIMO
, 2023 In this chapter, we will discuss how to achieve spatial multiplexing in multiple-input multiple-output (MIMO) communications through precoding design, for both traditional small-scale MIMO systems and massive MIMO systems. The mathematical description for MIMO communications will first be introduced, based on which we discuss both block-level precoding
Haonan Wang, Ang Li
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Traje de Tradição: elementos da contemporaneidade na cultura de rua
ModaPalavra e-periódico, 2016 O artigo discorre sobre a memória dos trajes e a maneira como os indivíduos registram e interpretam suas relações com eles. Parte-se do pressuposto de que nos colocamos em tudo, e, por essa razão, também, os trajes populares revelam o lugar político de ...
Márcia Merlo
doaj +2 more sources
The Political (Non)creativity in the Media [PDF]
In Medias Res, 2016 Mass media play a particular role in the formation of public opinion. Mass media also play a very important role in the processes of political communication.
Radenko Šćekić, Mimo Drašković
doaj
Improved model of radial vibration in switched reluctance motor including magnetic saturation
CES Transactions on Electrical Machines and Systems, 2018 This paper proposes an improved method for the prediction of radial vibration in switched reluctance motor (SRM) considering magnetic saturation. In this paper, the basic modeling principle is briefly introduced, it is based on the derivation that the ...
Xiaoqiang Guo +4 more
doaj +1 more source
IEEE Transactions on Information Theory, 2012 27 pages, 7 ...
Ronen Dar, Meir Feder, Mark Shtaif
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Advanced Electronic Materials, EarlyView.Ising machines are emerging as specialized hardware solvers for computationally hard optimization problems. This review examines five major platforms—digital CMOS, analog CMOS, emerging devices, coherent optics, and quantum systems—highlighting physics‐rooted advantages and shared bottlenecks in scalability and connectivity.
Hyunjun Lee, Joon Pyo Kim, Sanghyeon Kim
wiley +1 more source
Advanced Electronic Materials, EarlyView.A compact QASRR‐based THz metamaterial absorber enables polarization‐insensitive dual‐band absorption and skin‐cancer‐related refractive‐index sensing through measurable resonance shifts. Field, surface‐current, and circuit analyses clarify the dual‐resonance mechanism, while StackNet‐assisted prediction accurately estimates the simulated absorption ...
Md. Murad Kabir Nipun +5 more
wiley +1 more source