Results 1 to 10 of about 6,660,231 (388)
Wireless Network Security [PDF]
EURASIP Journal on Wireless Communications and Networking, 2009 Wireless networks technologies have been dramatically improved by the popularity of third generation (3G) wireless networks, wireless LANs, Bluetooth, and sensor networks. However, security is a major concern for wide deployments of such wireless networks.
Yang Xiao +4 more
openaire +6 more sources
Hybrid Active/Passive Wireless Network Aided by Intelligent Reflecting Surface: System Modeling and Performance Analysis [PDF]
IEEE Transactions on Wireless Communications, 2020 Intelligent reflecting surface (IRS) is a new and promising paradigm to substantially improve the spectral and energy efficiency of wireless networks, by constructing favorable communication channels via tuning massive low-cost passive reflecting ...
Jiangbin Lyu, Rui Zhang
semanticscholar +1 more source
A Deep Learning-Based Indoor Radio Estimation Method Driven by 2.4 GHz Ray-Tracing Data
IEEE Access, 2023 This paper presents a novel method for estimating received signal strength (RSS) in indoor radio propagation using a deep learning approach. The proposed method utilizes a training dataset comprised of imitated real-world indoor environments and radio ...
Changwoo Pyo +2 more
doaj +1 more source
Towards Smart and Reconfigurable Environment: Intelligent Reflecting Surface Aided Wireless Network [PDF]
IEEE Communications Magazine, 2019 IRS is a new and revolutionizing technology that is able to significantly improve the performance of wireless communication networks, by smartly reconfiguring the wireless propagation environment with the use of massive low-cost passive reflecting ...
Qingqing Wu, Rui Zhang
semanticscholar +1 more source
Intelligent Reflecting Surface Enhanced Wireless Network via Joint Active and Passive Beamforming [PDF]
IEEE Transactions on Wireless Communications, 2018 Intelligent reflecting surface (IRS) is a revolutionary and transformative technology for achieving spectrum and energy efficient wireless communication cost-effectively in the future.
Qingqing Wu, Rui Zhang
semanticscholar +1 more source
Caching in Wireless Networks [PDF]
IEEE Transactions on Information Theory, 2009 We consider the problem of delivering content cached in a wireless network of n nodes randomly located on a square of area n. The network performance is described by the n2^n-dimensional caching capacity region of the wireless network. We provide an inner bound on this caching capacity region, and, in the high path-loss regime, a matching (in the ...
Niesen, Urs +2 more
openaire +5 more sources
International Journal of Adaptive Control and Signal Processing, EarlyView., 2023 Summary In this contribution, we propose a detailed study of interpolation‐based data‐driven methods that are of relevance in the model reduction and also in the systems and control communities. The data are given by samples of the transfer function of the underlying (unknown) model, that is, we analyze frequency‐response data.
Quirin Aumann, Ion Victor Gosea
wiley +1 more source
Beamforming Optimization for Wireless Network Aided by Intelligent Reflecting Surface With Discrete Phase Shifts [PDF]
IEEE Transactions on Communications, 2019 Intelligent reflecting surface (IRS) is a cost-effective solution for achieving high spectrum and energy efficiency in future wireless networks by leveraging massive low-cost passive elements that are able to reflect the signals with adjustable phase ...
Qingqing Wu, Rui Zhang
semanticscholar +1 more source
Tailored Torsion and Bending‐Resistant Avian‐Inspired Structures
Advanced Engineering Materials, Volume 24, Issue 12, December 2022., 2022 Avian bones are prominent candidates for addressing the torsional and bending issue. They present a unique intertwining of simple components: helicoidal ridges and criss‐crossing struts, bearing flexural and twisting actions of winds. Here, it is set how to harmonically move from the natural to the engineering level to formalize and analyze the ...
Federica Buccino +4 more
wiley +1 more source
Advanced Functional Materials, Volume 32, Issue 52, December 22, 2022., 2022 Capsules of the biopolymer alginate cross‐linked by cations like Ca2+ or Cu2+ are shown to be electroresponsive: when a direct current field is applied around them, they swell and burst. The phenomenon arises because the field induces cations to electrophoretically migrate out of the capsules.
Ankit Gargava +2 more
wiley +1 more source