Results 31 to 40 of about 224,382 (271)

Dynamic master selection in wireless networks [PDF]

open access: yes, 2011
. Mobile wireless networks need to maximize their network lifetime (defined as the time until the first node runs out of energy). In the broadcast network lifetime problem, all nodes are sending broadcast traffic, and one asks for an assignment of ...
Graaf, Maurits de
core   +5 more sources

Secure relay node selection method based on Q-learning for fog computing in 5G network

open access: yesDianxin kexue, 2019
A Q-learning-based optimal dual-relay node selection method was proposed. Firstly, a security fog computing structure model based on social awareness was constructed, and then an optimal dual-relay node selection method based on Q-learning algorithm was ...
Shanshan TU   +4 more
doaj   +2 more sources

Intercept Probability Analysis of Cooperative Wireless Networks with Best Relay Selection in the Presence of Eavesdropping Attack

open access: yes, 2013
Due to the broadcast nature of wireless medium, wireless communication is extremely vulnerable to eavesdropping attack. Physical-layer security is emerging as a new paradigm to prevent the eavesdropper from interception by exploiting the physical ...
Shen, Weiming   +2 more
core   +1 more source

Cloud Compute-and-Forward with Relay Cooperation [PDF]

open access: yes, 2015
We study a cloud network with M distributed receiving antennas and L users, which transmit their messages towards a centralized decoder (CD), where M>=L.
Diamantoulakis, Panagiotis D.   +3 more
core   +1 more source

Optimal Relay Selection with Non-negligible Probing Time

open access: yes, 2015
In this paper an optimal relay selection algorithm with non-negligible probing time is proposed and analyzed for cooperative wireless networks. Relay selection has been introduced to solve the degraded bandwidth efficiency problem in cooperative ...
Liu, Mingyan, Liu, Yang, Ouyang, Yi
core   +1 more source

DMT Optimal On-Demand Relaying for Mesh Networks [PDF]

open access: yes, 2009
This paper presents a new cooperative MAC (Medium Access Control) protocol called BRIAF (Best Relay based Incremental Amplify-and-Forward). The proposed protocol presents two features: on-demand relaying and selection of the best relay terminal.
Escrig, BenoƮt, Roviras, Daniel
core   +2 more sources

Buffer-Aided Relaying with Adaptive Link Selection

open access: yes, 2012
In this paper, we consider a simple network consisting of a source, a half-duplex decode-and-forward relay, and a destination. We propose a new relaying protocol employing adaptive link selection, i.e., in any given time slot, based on the channel state ...
Popovski, Petar   +2 more
core   +2 more sources

Nonregenerative MIMO Relaying with Optimal Transmit Antenna Selection

open access: yes, 2008
We derive optimal SNR-based transmit antenna selection rules at the source and relay for the nonregenerative half duplex MIMO relay channel. While antenna selection is a suboptimal form of beamforming, it has the advantage that the optimization is ...
Heath Jr, Robert W., Peters, Steven W.
core   +1 more source

Optimal Relay Selection for Physical-Layer Security in Cooperative Wireless Networks

open access: yes, 2013
In this paper, we explore the physical-layer security in cooperative wireless networks with multiple relays where both amplify-and-forward (AF) and decode-and-forward (DF) protocols are considered.
Shen, Weiming   +2 more
core   +1 more source

Visual Recovery Reflects Cortical MeCP2 Sensitivity in Rett Syndrome

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Rett syndrome (RTT) is a devastating neurodevelopmental disorder with developmental regression affecting motor, sensory, and cognitive functions. Sensory disruptions contribute to the complex behavioral and cognitive difficulties and represent an important target for therapeutic interventions.
Alex Joseph Simon   +12 more
wiley   +1 more source

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