Results 51 to 60 of about 3,472,430 (240)

Almost universal codes for fading wiretap channels

open access: yes, 2016
We consider a fading wiretap channel model where the transmitter has only statistical channel state information, and the legitimate receiver and eavesdropper have perfect channel state information.
Ling, Cong   +2 more
core   +4 more sources

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

Performance Analysis for User-Centric Dense Networks With mmWave

open access: yesIEEE Access, 2019
This paper focuses on the coverage probability and ergodic capacity for millimeter wave (mmWave) user-centric dense networks, where multiple access points (APs) consist of a virtual cell for each user equipment and transmit data with mmWave antennas ...
Jianfeng Shi   +3 more
doaj   +1 more source

On Ergodic Capacity and Optimal Number of Tiers in UAV-Assisted Communication Systems [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2018
In this paper, we consider unmanned aerial vehicle (UAV) assisted communication systems, where a number of UAVs are utilized as multi-tier relays between a number of users and a base-transceiver station (BTS).
Sha Hu
semanticscholar   +1 more source

Comparison of Seismic Performance Assessment Using Observed or Simulated Ground Motions in Seismic Hazard Analysis and Ground Motion Selection

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT This paper illustrates opportunities for the use of simulated ground motions in seismic performance assessment – from seismic hazard, ground‐motion selection, response history analysis, and seismic demand hazard calculation. The illustration is through a comparative analysis with the conventional alternative of observed ground motions.
Vahid Loghman   +2 more
wiley   +1 more source

On the Capacity of Joint Fading and Two-path Shadowing Channels

open access: yes, 2016
The ergodic and outage channel capacity of different optimal and suboptimal combinations of transmit power and modulation rate adaptation strategies over a joint fading and two-path shadowing (JFTS) fading/shadowing channel is studied in this paper ...
Dey, I., Magierowski, S., Messier, G. G.
core   +1 more source

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

The importance of considering regimes in long‐term asset allocation to real estate

open access: yesReal Estate Economics, EarlyView.
Abstract We investigate the long‐term, regime‐dependent asset allocation of an investor's wealth in a mixed‐asset portfolio that includes publicly traded real estate. We show that augmenting standard VAR models with Markov‐switching features not only improves predictive power for asset returns but also introduces economically meaningful horizon effects
Massimo Guidolin   +2 more
wiley   +1 more source

Ergodic Capacity Analysis of Wireless Powered AF Relaying Systems over alpha-µ Fading Channels [PDF]

open access: yesGlobal Communications Conference, 2017
In this paper, we consider a two-hop amplify-and- forward (AF) relaying system, where the relay node is energy-constrained and harvests energy from the source node.
G. Nauryzbayev   +3 more
semanticscholar   +1 more source

Enhancing generalizability theory with mixed‐effects models for heteroscedasticity in psychological measurement: A theoretical introduction with an application from EEG data

open access: yesBritish Journal of Mathematical and Statistical Psychology, EarlyView.
Abstract Generalizability theory (G‐theory) defines a statistical framework for assessing measurement reliability by decomposing observed variance into meaningful components attributable to persons, facets, and error. Classic G‐theory assumes homoscedastic residual variances across measurement conditions, an assumption that is often violated in ...
Philippe Rast, Peter E. Clayson
wiley   +1 more source

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