Results 41 to 50 of about 8,148 (288)

Applied constant gain amplification in circulating loop experiments [PDF]

open access: yes, 2009
The reconfiguration of channel or wavelength routes in optically transparent mesh networks can lead to deviations in channel power that may impact transmission performance.
Barry, Liam P.   +3 more
core   +1 more source

Cascaded channel estimation technique for massive MIMO relay system [PDF]

open access: yes, 2018
© Published under licence by IOP Publishing Ltd. This paper concerns with the cascaded channel estimation of massive multiple-input multiple-output (MIMO) relay system.
Zang, Z., Ling, Y.L.D., Chiong, Raymond
core   +1 more source

On binary channels and their cascades [PDF]

open access: yesIEEE Transactions on Information Theory, 1955
A detailed analysis of the general binary channel is given, with special reference to capacity (both separately and in cascade), input and output symbol distributions, and probability of error. The infinite number of binary channels with the same capacity lie on double-branched equicapacity lines.
openaire   +1 more source

Reconfigurable Intelligent Surface Reliable Cooperative Beamforming Based on Cascade/Parallel Hybrid Networking

open access: yesIEEE Access, 2023
Reconfigurable intelligent surface (RIS) is regarded as one of the main enablers in the context of 6G wireless communications. It converts the conventionally uncontrolled wireless channel into a programmed channel.
Mostafa M. Elsherbini   +2 more
doaj   +1 more source

Path Loss Model for 3.5 GHz and 5.6 GHz Bands in Cascaded Tunnel Environments

open access: yesSensors, 2022
An important and typical scenario of radio propagation in a railway or subway tunnel environment is the cascaded straight and curved tunnel. In this paper, we propose a joint path loss model for cascaded tunnels at 3.5 GHz and 5.6 GHz frequency bands. By
Jingyuan Qian   +3 more
doaj   +1 more source

End-to-End Physical Layer Authentication for Dual-Hop Wireless Networks

open access: yesIEEE Access, 2019
End-to-end (E2E) physical layer authentication for multi-hop wireless networks is still not well-explored by now. Like one step forward in this direction, this paper focuses on the E2E physical layer authentication in a dual-hop wireless network with an ...
Pinchang Zhang   +3 more
doaj   +1 more source

SNDR sensitivity analysis for cascaded ΣΔ modulators [PDF]

open access: yes, 2000
Cascade, single and multi-bit, ΣΔ architectures provide stable, high order quantization noise shaping used in high resolution A/D conversion. One major disadvantage of cascaded ΣΔ topologies is the extreme SNDR sensitivity to gain mismatch between the ...
Hoke, M, Kocak, T, Morizio, J, Geddie, C
core   +1 more source

Channelization cascade

open access: yes, 2018
The hierarchy of channel networks in landscapes displays features that are characteristic of non-equilibrium complex systems. Here we show that a sequence of increasingly complex ridge and valley networks is produced by a system of partial differential equations coupling landscape evolution dynamics with a specific catchment area equation.
Bonetti, Sara   +3 more
openaire   +2 more sources

Min-Entropy Leakage of Channels in Cascade [PDF]

open access: yes, 2012
Theories of quantitative information flow offer an attractive framework for analyzing confidentiality in practical systems, which often cannot avoid "small" leaks of confidential information. Recently there has been growing interest in the theory of min-entropy leakage, which measures uncertainty based on a random variable's vulnerability to being ...
Barbara Espinoza, Geoffrey Smith 0001
openaire   +1 more source

Tensor‐based mobile channel tracking for IRS‐aided transmission systems

open access: yesElectronics Letters, 2023
In communication and sensing integrations, an intelligent reflective surface (IRS) will provide an auxiliary wireless link to enhance coverage and information transmission quality.
Ying Su, Jing Zhang
doaj   +1 more source

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