Results 51 to 60 of about 6,150 (302)

Compound Wiretap Channels

open access: yesEURASIP Journal on Wireless Communications and Networking, 2009
This paper considers the compound wiretap channel, which generalizes Wyner's wiretap model to allow the channels to the (legitimate) receiver and to the eavesdropper to take a number of possible states.
Shlomo Shamai (Shitz)   +3 more
doaj   +2 more sources

RIS-Aided Mixed RF-FSO Wireless Networks: Secrecy Performance Analysis With Simultaneous Eavesdropping

open access: yesIEEE Access, 2023
In order to meet the demands of diverse services within sixth-generation networks across a range of industries, numerous approaches are being employed to address notable signal degradation resulting from channel obstruction, particularly in the realms of
Md. Mijanur Rahman   +5 more
doaj   +1 more source

Development of a Prediction Model for Progression Risk in High‐Grade Gliomas Based on Habitat Radiomics and Pathomics

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To investigate the value of constructing models based on habitat radiomics and pathomics for predicting the risk of progression in high‐grade gliomas. Methods This study conducted a retrospective analysis of preoperative magnetic resonance (MR) images and pathological sections from 72 patients diagnosed with high‐grade gliomas (52 ...
Yuchen Zhu   +14 more
wiley   +1 more source

Clustering Algorithm Reveals Dopamine‐Motor Mismatch in Cognitively Preserved Parkinson's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore the relationship between dopaminergic denervation and motor impairment in two de novo Parkinson's disease (PD) cohorts. Methods n = 249 PD patients from Parkinson's Progression Markers Initiative (PPMI) and n = 84 from an external clinical cohort.
Rachele Malito   +14 more
wiley   +1 more source

Secrecy Capacity of a Class of Broadcast Channels with an Eavesdropper

open access: yesEURASIP Journal on Wireless Communications and Networking, 2009
We study the security of communication between a single transmitter and many receivers in the presence of an eavesdropper for several special classes of broadcast channels.
Ersen Ekrem, Sennur Ulukus
doaj   +2 more sources

Some New Results on the Wiretap Channel with Side Information

open access: yesEntropy, 2012
In this paper, the model of wiretap channel has been reconsidered for the case that the main channel is controlled by channel state information (side information), and it is available at the transmitter in a noncausal manner (termed here noncausal side ...
Yuan Luo, Bin Dai
doaj   +1 more source

Secrecy performance evaluation of cooperative vehicular relay networks against location‐uncertain eavesdroppers

open access: yesElectronics Letters, 2022
This letter is concerned with the physical layer security of the cooperative vehicular relay network where a source vehicle communicates with a destination vehicle via both a direct link in the presence of a location‐uncertain eavesdropping vehicle and ...
Shanchuan Huang   +4 more
doaj   +1 more source

Secrecy capacity optimization artificial noise: the ergodic secrecy capacity lower bound and optimal power allocation

open access: yes, 2020
Abstract The secure transmission problem of MIMO wireless system in fading channels is studied in this paper. We add a secrecy capacity optimization artificial noise(SCO-AN) to the transported signal for improving the security performance of the system. The closed-form expression of secrecy capacity's lower bound is obtained. Base on the closed-
Yebo Gu   +3 more
openaire   +1 more source

Secrecy Capacity Maximization for a Hybrid Relay-RIS Scheme in mmWave MIMO Networks [PDF]

open access: green, 2022
Edson Nobuyuki Egashira   +3 more
openalex   +1 more source

Location‐Specific Hematoma Volume Predicts Early Neurological Deterioration in Supratentorial ICH

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Early neurological deterioration (END) adversely affects outcomes in patients with intracerebral hemorrhage (ICH). This study aimed to determine the location‐specific hematoma volumes for END in supratentorial ICH patients. Methods We retrospectively analyzed supratentorial ICH patients presenting from two prospective cohorts.
Zuoqiao Li   +10 more
wiley   +1 more source

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