Results 21 to 30 of about 105,781,316 (298)
Cooperative Spectrum Sensing Schemes with the Interference Constraint in Cognitive Radio Networks
Sensors, 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
IEEE 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
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Decode-and-forward buffer-aided relay selection in cognitive relay networks [PDF]
, 2014 This paper investigates decode-and-forward (DF) buffer-aided relay selection for underlay cognitive relay networks (CRNs) in the presence of both primary transmitter and receiver.
Gaojie Chen (7211195) +7 more
core +2 more sources
Performance Comparison of Relay-Based Covert Communications: DF, CF and AF
Sensors, 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
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Power Efficient Decode-and-Forward Cooperative Relaying [PDF]
IEEE Wireless Communications Letters, 2012 Cooperative communications have been proven to be effective in enhancing performance of wireless networks. In this letter, we introduce and propose adaptive relay-selection rules to offer a tradeoff between fairness and energy consumption at each node for a network with multiple, mutually cooperative nodes.
Zhengguo Sheng +2 more
openaire +1 more source
An Efficient Partner Selection Method to Overcome the Interference Effect in Wireless Networks
IEEE 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
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PERFORMANCE ANALYSIS OF COOPERATION SCHEMES IN EAVESDROPPER ASSISTED RELAY CHANNEL [PDF]
ICTACT 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
Robust Transceiver Design for IRS-Assisted Cascaded MIMO Communication Systems
Sensors, 2022 Intelligent reconfigurable surfaces (IRSs) have gained much attention due to their passive behavior that can be a successor to relays in many applications. However, traditional relay systems might still be a perfect choice when reliability and throughput
Hossein Esmaeili +2 more
doaj +1 more source
Multipair Two-Way DF Relaying With Cell-Free Massive MIMO
IEEE Open Journal of the Communications Society, 2021 We consider a two-way half-duplex decode-and-forward (DF) relaying system with multiple pairs of single-antenna users assisted by a cell-free (CF) massive multiple-input multiple-output (mMIMO) architecture with multiple-antenna access points (APs ...
Anastasios K. Papazafeiropoulos +3 more
doaj +1 more source
Smart Decode-and-Forward Relaying with Polar Codes [PDF]
IEEE Wireless Communications Letters, 2014 Polar codes have recently been proven to be capacity achieving for the physically degraded relay channel and relevant coding schemes have been proposed in the literature. In this paper, we deal with the design of polar codes in decode-and-forward relaying and prove that the selective transmission of the relay to the destination, based on the decision ...
Dimitrios S. Karas +2 more
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