Cooperative Detection for Primary User in Cognitive Radio Networks
EURASIP Journal on Wireless Communications and Networking, 2009 We propose two novel cooperative detection schemes based on the AF (Amplify and Forward) and DF (Decode and Forward) protocols to achieve spatial diversity gains for cognitive radio networks, which are referred to as the AF-CDS, (AF-based Cooperative ...
Zhu Jia, Zou Yulong, Zheng Baoyu
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Destination Assisted Jamming and Beamforming for Improving the Security of AF Relay Systems
IEEE Access, 2017 In this paper, we propose a destination-assisted jamming and beamforming (DAJB) scheme for physical layer security in a one-way cooperative amplify-and-forward (AF) relay communication system. The system model consists of one source, one destination, one
Nian Ouyang +3 more
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Perbandingan Kinerja Non-Orthogonal dan Orthogonal Amplify and Forward pada Two-Way Cooperative WLAN
Jurnal Nasional Teknik Elektro dan Teknologi Informasi, 2017 Nowadays, the advancement of Wireless Local Area Network (WLAN) technology has developed very rapidly because it is very practical and has effective mobility level. In practice, there is a major problem in wireless communications systems, which is fading.
Kurnia Rizki, Nasaruddin, Ramzi Adriman
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Multicast Transmissions With Full-Duplex Amplify-and-Forward User Cooperation
IEEE Access, 2020 In order to improve the multicast transmissions, a full-duplex (FD) user cooperation scheme is proposed. In this paper, the transmitter sends the common messages to two FD users, and each user forwards its received signals to its counterpart by amplify ...
Linsong Du, Han Zhang, Chuan Huang
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NOMA-Based User Cooperation With Incremental Hybrid Forwarding Protocols
IEEE Open Journal of the Communications Society, 2021 In this paper, we investigate the performance of a non-orthogonal multiple access (NOMA) wireless system, in which signal transmission of a far user is assisted by a near user.
Suyue Li +5 more
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Relay Cooperative Beamforming Algorithm Based on Probabilistic Constraint in SWIPT Secrecy Networks
IEEE Access, 2020 We explore physical layer security of simultaneous wireless information and power transfer (SWIPT) relay network in this paper. Modeling channel error between relay and eavesdroppers (Eves) as random channel state information (CSI) error, we present an ...
Zhentao Hu +4 more
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Power Allocation for Cognitive Collaborative Network Based on Adaptive Relay [PDF]
Jisuanji gongcheng, 2017 In relayed transmission systems,power allocation algorithm based on Decode and Forward(DF) increases error in case of incorrect decoding of the information symbols,and the one based on Amplify Forward(AF) amplifies the noise.In order to solve the problem,
LUO Ji
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Pattern Division Multiple Access Featuring Amplify-and-Forward Relaying in an Uplink Network
IEEE Access, 2020 NOMA is one of key enabling technologies for prosumer energy management. We studied co-operative techniques useful for establishing pattern division multiple access (PDMA) in an uplink network. In particular, we examined amplify-and-forward (AF) relaying
Xiurong Zhang, Shaoli Kang, Xueqian Fu
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Secrecy analysis of AF relaying with triple selection over arbitrary Nakagami fading channels
Electronics Letters, 2023 This paper analyzes the secrecy outage probability of amplify and forward (AF) relaying with triple selection over real valued Nakagami fading channels.
Donghun Lee
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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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