Results 51 to 60 of about 13,322 (283)

Mixed RF/FSO Relaying Systems with Hardware Impairments [PDF]

GLOBECOM 2017 - 2017 IEEE Global Communications Conference, 2017
In this work, we provide a detailed analysis of a dual-hop fixed gain (FG) amplify-and-forward relaying system, consisting of a hybrid radio frequency (RF) and free-space optical (FSO) channels. We introduce an impairment model which is the soft envelope limiter (SEL).
Elyes Balti, Mohsen Guizani, Bechir Hamdaoui, Bassem Khalfi   +3 more
openaire   +2 more sources

Optoelectronic Synaptic Devices Using Molecular Telluride Phase‐Change Inks for Three‐Factor Learning

Advanced Functional Materials, EarlyView.
Optoelectronic synaptic devices based on solution‐processed molecular telluride GST‐225 phase‐change inks are demonstrated for three‐factor learning. A global optical signal broadcast through a silicon waveguide induces non‐volatile conductance updates exclusively in locally electrically flagged memristors.
Kevin Portner, Dhananjeya Kumaar, Giacomo Torti, Killian Keller, Till Zellweger, Florian M. Schenk, Christoph Weilenmann, Daniel Chelladurai, Vara Prasad Jonnalagadda, Ghazi Sarwat Syed, Vanessa Wood, Jürg Leuthold, Alexandros Emboras, Maksym Yarema, Mathieu Luisier   +14 more
wiley   +1 more source

Extending RIS Life Span for Reliable Communication Under Hardware Ageing Effects

IEEE Open Journal of the Communications Society
In this paper, we address the critical aspect of hardware ageing effects in reconfigurable intelligent surfaces (RISs), whereby the problem of extending the RIS’s life cycle under the impact of non-residual stochastic hardware impairment is ...
Atiquzzaman Mondal, Shyamal Ghosh, Keshav Singh, Sudip Biswas, Trung Q. Duong   +4 more
doaj   +1 more source

3D Printing Innovations in Polymeric Porous and Patterned Architecture

Advanced Functional Materials, EarlyView.
Polymeric foams occupy a unique structural space between dense solids and open networks, where engineered void fraction governs mechanical compliance, thermal resistance, and mass transport. Additive manufacturing now enables precise spatial control over cellular architecture, unlocking designer foam structures across applications spanning crash ...
Dhanush Patil, Sri Vaishnavi Thummalapalli, Clarissa Westover, Arunachalam Ramanathan, M. Taylor Sobzcak, Roumika Patil, Qixuan Xiang, Tiantian Li, Sui Yang, Timothy E. Long, Hongyue Sun, Xianqiao Wang, Yang Liu, Kenan Song   +13 more
wiley   +1 more source

A Cascade Deep Neural Network Approach for Compensation of RF Hardware Impairments in Wireless Transmitters

IEEE Open Journal of the Communications Society
Radio frequency (RF) hardware impairments can affect the transmit and receive signals in several ways, including deterioration of signal integrity, loss of power/spectral efficiency, and system performance degradation. While substantial efforts have been
Abdullahi Mohammad, Arne Fischer-Buhner, Lauri Anttila, Mikko Valkama, Bo Tan   +4 more
doaj   +1 more source

The influence of hardware impairment on the sys

, 2019
In this research, the system performance of the half-duplex two-way relay network under hardware impairment condition is presented and investigated. In this system model, the time switching protocol and amplify-and-forward (AF)-based are considered. First, of all, the analytical expressions of the outage probability, and achievable throughput with the ...
Le Anh Vu, Minh Tran, Van-Duc Phan, Hoang-Nam Nguyen, Thanh-Long Nguyen   +4 more
openaire   +1 more source

Oxidized MoS2‐Based Multifunctional Memristive Hardware for Energy‐Efficient mmWave Signal Processing and In‐Memory Matrix Multiplication

Advanced Functional Materials, EarlyView.
Thermally oxidized MoS2‐based radio‐frequency switches enable a multifunctional platform that unifies broadband RF switching and in‐memory computation. The device achieves a cutoff frequency of 33.2 THz with high energy efficiency and supports hardware‐aware signal processing.
Juho Son, Changwoo Pyo, Sungmoon Park, Yoongi Cho, Seungchan Lee, Myungsoo Kim   +5 more
wiley   +1 more source

MIMO Systems with Residual Hardware Impairments

, 2014
Recent years have witnessed an unprecedented explosion in mobile data traffic, due to the expansion of numerous types of wireless devices, which have enabled a plethora of data-hungry applications.
Zhang, Xinlin,
core   +1 more source

Deep Reinforcement Learning for RIS-Aided Multiuser MISO System with Hardware Impairments

Applied Sciences, 2022
In this paper, we study a reconfigurable intelligent surface (RIS)-aided multiuser MISO system with imperfect hardware, where the transceiver design is based on the statistical channel state information (CSI).
Wenjie Ma, Liuchang Zhuo, Luchu Li, Yuhao Liu, Hong Ren   +4 more
doaj   +1 more source

Achievable Rate with Correlated Hardware Impairments in Large Intelligent Surfaces

, 2019
Large intelligent surface (LIS) is a new technology yet to be developed. However, this technology is likely to be implemented using cheap components so as to facilitate its deployment.
Fredrik Rusek, Juan Vidal Alegria, Rusek, Fredrik, Alegria, Juan Vidal   +3 more
core   +1 more source