Results 1 to 10 of about 55,618 (226)
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
doaj +2 more sources
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
doaj +2 more sources
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
openaire +1 more source
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
openaire +1 more source
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
doaj +2 more sources
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
doaj +1 more source
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
doaj +1 more source
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
doaj +2 more sources
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
openaire +1 more source
Converging Underwater and FSO Ground Communication Links [PDF]
, 2019 We propose a new combined underwater-atmospheric optical communication link for providing a high speed optical connectivity between onshore and sumerge systems.
Castillo-Vazquez, Miguel +4 more
core +1 more source