Results 11 to 20 of about 8,148 (288)

On the cascaded Weibull fading channel model

open access: yesJournal of the Franklin Institute, 2007
A new stochastic fading channel model called cascaded Weibull fading is introduced and the associated capacity is derived in closed form. This model is generated by the product of independent, but not necessarily identically distributed, Weibull random ...
Nikos C Sagias, G S Tombras
exaly   +5 more sources

Multifunctional Metasurface Based on Cascaded Multilayer Modules [PDF]

open access: yesNanomaterials
This paper proposes a novel design method for multifunctional modular metasurfaces based on cascaded multilayer modules. Strong electromagnetic coupling between cascaded modules and balanced interface impedance achieved through optimized resonator ...
Tongxing Huang   +6 more
doaj   +3 more sources

Cascaded channel decoupling based solution for RIS regulation matrix [PDF]

open access: yesIntelligent and Converged Networks, 2023
This article presents a pioneering solution to address the challenges of reconfigurable intelligent surface (RIS), employing a cascaded channel decoupling strategy.
Yajun Zhao
doaj   +2 more sources

Joint Optimization of Codeword Bit Distribution and Detection Threshold for Asymmetric STT-MRAM Channel [PDF]

open access: yesSensors
Asymmetric error characteristics in spin-transfer torque magnetic random-access memory (STT-MRAM), particularly the imbalance between logical ‘0’ and ‘1’ error probabilities, can significantly degrade system reliability under conventional modulation and ...
Thien An Nguyen, Jaejin Lee
doaj   +2 more sources

Uplink Cascaded Channel Estimation for Intelligent Reflecting Surface Assisted Multiuser MISO Systems

open access: yesIEEE Transactions on Signal Processing, 2022
This paper investigates the uplink cascaded channel estimation for intelligent-reflecting-surface (IRS)-assisted multi-user multiple-input-single-output systems.
Huayan Guo, Vincent K N Lau
exaly   +2 more sources

Distributed deep learning with RIS grouping for accurate cascaded channel estimation [PDF]

open access: yesAIP Advances
Reconfigurable Intelligent Surface (RIS) panels are envisioned as a key technology for sixth-generation (6G) wireless networks, providing a cost-effective means to enhance coverage and spectral efficiency.
Saifur Rahman   +8 more
doaj   +3 more sources

Channel estimation for amplify-and-forward relaying: cascaded against disintegrated estimators

open access: yesIET Communications, 2010
Due to copyright restrictions, the access to the full text of this article is only available via subscription.The authors investigate the performance of amplify-and-forward relaying with two different pilot-symbol-assisted channel estimation methods.
Murat Uysal
exaly   +2 more sources

Improving MRAM Performance with Sparse Modulation and Hamming Error Correction [PDF]

open access: yesSensors
With the rise of the Internet of Things (IoT), smart sensors are increasingly being deployed as compact edge processing units, necessitating continuously writable memory with low power consumption and fast access times.
Nam Le   +3 more
doaj   +2 more sources

OTA Testing for Massive MIMO Devices Using Cascaded APM Networks and Channel Emulators

open access: yesInternational Journal of Antennas and Propagation, 2019
This paper proposes an over-the-air (OTA) testing setup for millimeter-wave (mmWave) massive multiple-input multiple-output (MIMO) equipment using cascaded amplitude and phase modulation (APM) network and channel emulator. Compared with the existing test
Lijian Xin   +3 more
doaj   +2 more sources

Statistical Analysis of Cascaded Multipath Fading Channels [PDF]

open access: yes, 2015
In cellular communication systems, one of the prominent impairments due to the wireless channel is the multipath fading. In this thesis, we study the multipath effects, particularly in the so-called cascaded fading channels.
Zheng, Zhong
core   +6 more sources

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