Results 41 to 50 of about 1,754 (179)

A geometry‐based stochastic channel model and its application for intelligent reflecting surface assisted wireless communication

open access: yesIET Communications, 2021
Intelligent reflecting surface (IRS) is a new concept originating from metamaterials, which can achieve beamforming through controllable passive reflecting.
Jian Dang   +8 more
doaj   +1 more source

Performance Analysis of Beacon-Assisted Wireless Powered Communications With Spatially Random Sensors

open access: yesIEEE Access, 2023
In this work, we present the performance evaluation of a power beacon-assisted wireless-powered communication system in the presence of multiple co-channel interferers.
Valentine Aalo   +2 more
doaj   +1 more source

Multipacket Hybrid ARQ: Closing Gap to the Ergodic Capacity [PDF]

open access: yesIEEE Transactions on Communications, 2015
In this work, we consider incremental redundancy (IR) hybrid automatic repeat request (HARQ), where the transmission rounds are carried over independent block-fading channels. We analyze the multipacket HARQ, where the transmitter allows two different packets to share the same channel block; this stands in contrast with the conventional HARQ, where ...
Mohammed Jabi   +3 more
openaire   +1 more source

Machine Learning‐Assisted Design of BaTiO3‐Based Superparaelectric High‐Entropy Ceramics with Superior Energy Storage

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study employed an adaptive iterative strategy combining machine learning algorithms, domain knowledge, experimental design, and experimental feedback to aim to precisely and quickly discover high‐entropy ceramics with excellent energy storage performance.
Haowen Liu   +4 more
wiley   +1 more source

Continuous ergodic capacities

open access: yes
The objective of this paper is to characterize the structure of the set $Θ$ for a continuous ergodic upper probability $\mathbb{V}=\sup_{P\inΘ}P$ (Theorem \ref {main result}): . $Θ$ contains a finite number of ergodic probabilities; . Any invariant probability in $Θ$ is a convex combination of those ergodic ones in $Θ$; .
Sheng, Yihao, Song, Yongsheng
openaire   +3 more sources

Ergodic capacity evaluation of wireless THz fiber extenders

open access: yesCoRR, 2019
This paper focuses on delivering quantified results for the evaluation of the aggregated impact of stochastic antenna misalignment, multipath fading and hardware imperfections on the terahertz (THz) wireless fiber extenders. In this line, we present the appropriate signal model that accommodates the different technical and environmental parameters.
Evangelos N. Papasotiriou   +2 more
openaire   +2 more sources

Ergodic Secrecy Capacity Region of the Fading Broadcast Channel [PDF]

open access: yes2009 IEEE International Conference on Communications, 2009
We consider the fading broadcast channel from a secrecy point of view. In this channel, each user views the other user as an eavesdropper, and wants to keep its information as secret from the other user as possible. First, we consider a more general channel model which consists of L independent sub-channels, where in each sub-channel, one of the users'
Ersen Ekrem, Sennur Ulukus
openaire   +1 more source

Enforced but not Enacted: How Return‐to‐Office Policies Reshape Boundary Enactment, Work‐Location Volition, and Eudaimonic Wellbeing

open access: yesHuman Resource Management, EarlyView.
ABSTRACT HR faces a conundrum over how to organize hybrid working patterns given the pros and cons associated with conducting work across multiple domains. Many organizations are currently seeking to clarify and often increase the requirements for employee presence at employer premises, meaning studies are needed to better understand how HR should look
Michael E. Clinton   +3 more
wiley   +1 more source

Adaptive Multi-Node Multiple Input and Multiple Output (MIMO) Transmission for Mobile Wireless Multimedia Sensor Networks

open access: yesSensors, 2013
Mobile wireless multimedia sensor networks (WMSNs), which consist of mobile sink or sensor nodes and use rich sensing information, require much faster and more reliable wireless links than static wireless sensor networks (WSNs).
Cheolwoo You   +2 more
doaj   +1 more source

Reconfigurable Intelligent Surface-Aided Cooperative NOMA with p-CSI Fading Channel toward 6G-Based IoT System

open access: yesSensors, 2022
Addressing the challenges of internet-based 5G technology, namely increasing density through micro-cell systems, frequency spectrum, and reducing resource costs, is needed to meet the use of IoT-based 6G technology with the goal of high-speed, high ...
Hsing-Chung Chen   +3 more
doaj   +1 more source

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