Results 21 to 30 of about 10,192 (231)

Non-linear energy harvesting based power splitting relaying in full-duplex AF and DF relaying networks: system performance analysis [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2020
Wireless power transfer is considered as a novel solution for energy harvesting in wireless communication networks. In this paper, the system performance of the non-linear energy harvesting based power splitting relaying in the full-duplex relaying ...
Tran Tin Phu   +5 more
doaj   +1 more source

Cooperative Spectrum Sensing Schemes with the Interference Constraint in Cognitive Radio Networks

open access: yesSensors, 2014
In this paper, we propose cooperative spectrum sensing schemes, called decode-and-forward cooperative spectrum sensing (DF-CSS) scheme and amplify-and-forward cooperative spectrum sensing (AF-CSS) scheme, in cognitive radio networks.
Tri-Nhu Do, Beongku An
doaj   +1 more source

Transmit Signal and Bandwidth Optimization in Multiple-Antenna Relay Channels [PDF]

open access: yes, 2010
Transmit signal and bandwidth optimization is considered in multiple-antenna relay channels. Assuming all terminals have channel state information, the cut-set capacity upper bound and decode-and-forward rate under full-duplex relaying are evaluated by ...
Foschini, Gerard J., Ng, Chris T. K.
core   +1 more source

Design and Experimental Investigation of Decode-and-Forward and Amplify-and-Forward Relaying FSO-CDMA

open access: yesIEEE Photonics Journal, 2022
The scheme of combining relay and optical code division multiple access (OCDMA) is one of the effective methods to improve the reliability and security of free space optical (FSO) communication system.
Jianhua Ji   +4 more
doaj   +1 more source

Optimal Routing for the Gaussian Multiple-Relay Channel with Decode-and-Forward [PDF]

open access: yes, 2007
In this paper, we study a routing problem on the Gaussian multiple relay channel, in which nodes employ a decode-and-forward coding strategy. We are interested in routes for the information flow through the relays that achieve the highest DF rate.
Motani, Mehul, Ong, Lawrence
core   +2 more sources

Performance Comparison of Relay-Based Covert Communications: DF, CF and AF

open access: yesSensors, 2023
In this paper, we investigate the performance of covert communications in different types of a relay system: decode-and-forward (DF), compress-and-forward (CF) and amplify-and-forward (AF).
Jihwan Moon
doaj   +1 more source

Optimal Power Allocation for Two-Way Decode-and-Forward OFDM Relay Networks [PDF]

open access: yes, 2012
This paper presents a novel two-way decode-and-forward (DF) relay strategy for Orthogonal Frequency Division Multiplexing (OFDM) relay networks. This DF relay strategy employs multi-subcarrier joint channel coding to leverage frequency selective fading ...
Fei He   +7 more
core   +1 more source

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

open access: yes, 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   +1 more source

An Efficient Partner Selection Method to Overcome the Interference Effect in Wireless Networks

open access: yesIEEE Access, 2019
In this paper, through a mathematical analysis of the overall links capacity equation, we present an efficient partner selection criterion in a cooperative communication scheme with a time-varying fading channel and severe interference on the cooperative
Jamal A. Hassan, Samah A. Mustafa
doaj   +1 more source

PERFORMANCE ANALYSIS OF COOPERATION SCHEMES IN EAVESDROPPER ASSISTED RELAY CHANNEL [PDF]

open access: yesICTACT Journal on Communication Technology, 2014
The prominence of the wireless communication has been urging the monotonically increasing demand of security and privacy. In wireless systems, the notion of perfect secrecy of information with respect to illegitimate nodes can be ensured via physical ...
Vaibhav Kumar Gupta, Poonam Jindal
doaj  

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