Results 1 to 10 of about 54,503 (247)
Covert Communications in a Hybrid DF/AF Relay System [PDF]
SensorsIn this paper, we study covert communications in a hybrid decode-and-forward (DF)/ amplify-and-forward (AF) relay system. The considered relay in normal operation forwards messages from a source node to a destination node in either DF or AF mode on ...
Jihwan Moon
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Performance Analysis of a Dual-Hop Cooperative Relay Network with Co-Channel Interference [PDF]
Radioengineering, 2014 This paper analyzes the performance of a dual-hop amplify-and-forward (AF) cooperative relay network in the presence of direct link between the source and destination and multiple co-channel interferences (CCIs) at the relay.
M. Lin, H.Wei, J. Ouyang, K. An, C. Yuan
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Amplify-and-Forward (AF) Relay Techniques in Wireless SC-FDE Systems to Enhance Diversity Gains
International Journal of Electrical and Electronics Research, 2023 This paper introduces an amplify-and-forward (AF) relaying technique that employs phase dithering and intentional delay within single carrier-frequency domain equalizer (SC-FDE) systems. The proposed relaying technique aims to increase the gain of both frequency diversity and time diversity in slow fading channels.
Min-A Lee, Yu-Ra Heo, Eui-Rim Jeong
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Linear Multi-hop Amplify-and-Forward (AF) Cooperative Relay Channels [PDF]
Proceedings of the Asia-Pacific Advanced Network, 2015 Cooperative relaying of channels between base station and user equipment emerged as a great technique to enhance the reliability and throughput of cellular networks. The relay nodes normally exploit amplify-and-forward (AF) scheme to relay the connection.
Li Suet Mok +2 more
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Joint Channel-Network Coding for the Gaussian Two-Way Two-Relay Network
EURASIP Journal on Wireless Communications and Networking, 2010 New aspects arise when generalizing two-way relay network with one relay to two-way relay network with multiple relays. To study the essential features of the two-way multiple-relay network, we focus on the case of two relays in our work.
Ping Hu, Chi Wan Sung, Kenneth W. Shum
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Hybrid Protocols for Relay-Assisted Non-Orthogonal Multiple Access in Power Line Communications
IEEE Open Journal of the Communications Society, 2023 We study the outage probability performance of hybrid protocols in relay-assisted, non-orthogonal multiple access (NOMA)-based power line communication. In particular, we consider two networks with source, relay and destination nodes, namely, cooperative
Roopesh Ramesh +2 more
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Optimal Relay Selection Scheme Based on Hybrid Decode-Amplify-and-Forward [PDF]
Jisuanji gongcheng, 2017 In order to extend the network life on the base of lower Symbol Error Rate(SER),a relay selection scheme based on Hybrid Decode-Amplify-and-Forward(HDAF) relaying method is proposed.Joint optimization function about receiving Signal to Noise Ratio(SNR ...
SUN Wensheng,LI Leyuan
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On the Performance Gain of Hybrid Decode-Amplify-Forward Cooperative Communications
EURASIP Journal on Wireless Communications and Networking, 2009 We investigate the performance of adaptive decode-forward (ADF), amplify-forward (AF), and hybrid decode-amplify-forward (HDAF) relaying protocol. Specifically, we derive the closed-form expression of symbol error probability (SEP) for these three ...
Trung Q. Duong +1 more
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Elinvo (Electronics, Informatics, and Vocational Education), 2023 This study examines the system’s performance with implementation of the energy harvesting (EH) techniques at source node, S and relay node, R. The RF signals which are used to energy harvesting proccess are broadcasted by destination node, D. The information signals from S are sent to D via a R in a cooperative communication framework.
Ines Sastre Umayya +3 more
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Energy Efficient Joint Power Optimization for Full-Duplex Relaying
IEEE Access, 2019 Full-duplex (FD) relaying is a promising technology for the next generation communication systems. In this paper, we aim to jointly optimize the source and relay transmit powers to maximize the energy efficiency (EE) for both amplify-and-forward (AF) and
Zhenyao He +3 more
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