Results 1 to 10 of about 395,124 (322)

Amplify-and-Forward Cooperative Diversity for Green UWB-Based WBSNs [PDF]

open access: yesThe Scientific World Journal, 2013
This paper proposes a novel green cooperative diversity technique based on suboptimal template-based ultra-wideband (UWB) wireless body sensor networks (WBSNs) using amplify-and-forward (AF) relays.
Heba Shaban, Mohamad Abou El-Nasr
doaj   +4 more sources

Joint Resource Optimization for Orthogonal Frequency Division Multiplexing Based Cognitive Amplify and Forward Relaying Networks [PDF]

open access: yesSensors, 2020
This paper investigates two resource allocation problems in cognitive relaying networks where both secondary network and primary network coexist in the same frequency band and adopt orthogonal frequency division multiplexing (OFDM) technology.
Dong Qin, Tianqing Zhou
doaj   +2 more sources

Secure Multiple Amplify-and-Forward Relaying With Cochannel Interference [PDF]

open access: yesIEEE Journal of Selected Topics in Signal Processing, 2016
We investigate the impact of cochannel interference on the security performance of multiple amplify-and-forward (AF) relaying networks, where $N$ intermediate AF relays assist the data transmission from the source to the destination. The relays are corrupted by multiple cochannel interferers, and the information transmitted from the relays to the ...
Fan, Lisheng   +4 more
semanticscholar   +6 more sources

Amplify-and-Forward in Wireless Relay Networks [PDF]

open access: yes2011 IEEE Information Theory Workshop, 2011
A general class of wireless relay networks with a single source-destination pair is considered. Intermediate nodes in the network employ an amplify-and-forward scheme to relay their input signals.
Agnihotri, Samar   +2 more
core   +2 more sources

Grassmannian Beamforming for MIMO Amplify-and-Forward Relaying [PDF]

open access: yesIEEE Journal on Selected Areas in Communications, 2007
In this paper, we derive the optimal transmitter/ receiver beamforming vectors and relay weighting matrix for the multiple-input multiple-output amplify-and-forward relay channel. The analysis is accomplished in two steps.
Adve, Raviraj   +2 more
core   +4 more sources

Energy Efficiency Analysis in Amplify-and-Forward and Decode-and-Forward Cooperative Networks [PDF]

open access: yes2010 IEEE Wireless Communication and Networking Conference, 2010
In this paper, we have studied the energy efficiency of cooperative networks operating in either the fixed Amplifyand- Forward (AF) or the selective Decode-and-Forward (DF) mode.
Chen, Qing, Gursoy, Mustafa Cenk
core   +3 more sources

Hardware Impairments Aware Transceiver Design for Full-Duplex Amplify-and-Forward MIMO Relaying [PDF]

open access: yesIEEE Transactions on Wireless Communications, 2017
In this work we study the behavior of a full-duplex (FD) and amplify-and-forward (AF) relay with multiple antennas, where hardware impairments of the FD relay transceiver is taken into account.
Cirik, Ali Cagatay   +2 more
core   +2 more sources

Full-Duplex Amplify-and-Forward Relaying: Power and Location Optimization [PDF]

open access: yesIEEE Transactions on Vehicular Technology, 2017
tvt ...
Li, Shuai   +6 more
openaire   +4 more sources

Enhanced Amplify-and-Forward Relaying in Non-Gaussian PLC Networks

open access: yesIEEE Access, 2017
Relaying over power line communication (PLC) channels has the potential to improve the reliability and robustness of many PLC-based applications. In particular, this paper proposes to enhance the energy efficiency (EE) of a dual-hop relaying PLC system ...
Khaled M. Rabie, Bamidele Adebisi
doaj   +2 more sources

On Amplify-and-Forward Relaying Over Hyper-Rayleigh Fading Channels [PDF]

open access: yesRadioengineering, 2014
Relayed transmission holds promise for the next generation of wireless communication systems due to the performance gains it can provide over non-cooperative systems.
S. H. Alvi, S. Wyne
doaj   +2 more sources

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