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Adaptive Amplify-and-Forward Relaying for Cellular Downlink
IEICE Transactions on Communications, 2011This paper presents an adaptive amplify-and-forward (AF)-type relaying method appropriate for the cellular downlink. The proposed method adaptively selects active relay stations (RSs) based on the path loss between each set of user equipment (UE) and the base station (BS) and that between each RS in order to avoid unnecessary enhancement of inter-cell ...
Kiichi Tateishi, Kenichi Higuchi
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AEU - International Journal of Electronics and Communications, 2020
This paper considers the performance of a full-duplex (FD) vehicle-to-vehicle (V2V) relay system where the relay uses amplify-and-forward (AF) protocol and harvests the energy from the radio frequency (RF) signals transmitted by source.
B. Nguyen, X. Tran
semanticscholar +1 more source
This paper considers the performance of a full-duplex (FD) vehicle-to-vehicle (V2V) relay system where the relay uses amplify-and-forward (AF) protocol and harvests the energy from the radio frequency (RF) signals transmitted by source.
B. Nguyen, X. Tran
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Lifetime Maximization for Amplify-and-Forward Cooperative Networks
2007 IEEE Wireless Communications and Networking Conference, 2007Joint relay-selection and power-allocation strategies are devised to prolong the lifetime of amplify-and-forward (AF) cooperative networks. Lifetime is defined as the time duration within which the desired signal-to-noise ratio (SNR) at the destination is met with a certain probability. Based on selective relaying, we propose three strategies that take
null Wan-Jen Huang +2 more
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An amplify-and-forward scheme for cognitive radios
2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2014In this paper, we propose an opportunistic amplify-and-forward relaying scheme for a cognitive radio network, which is aimed at allowing a secondary user (SU) to transmit over the same timefrequency slot of a primary user (PU). In our scheme, the SU amplifies and transmits the PU signal it receives, by using as relaying gain the information symbols ...
VERDE, FRANCESCO +3 more
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Nonlinear Amplifier Distortion in Cooperative Amplify-and-Forward OFDM Systems
2009 IEEE Wireless Communications and Networking Conference, 2009This paper studies receiver techniques for nonlinear amplifier distortion compensation in an OFDM relay-assisted cooperative communication system. The system model includes a nonlinear amplifier at the amplify-and-forward relay, modeled as a solid state power amplifier (SSPA).
Victor del Razo +4 more
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Performance Analysis of a Multiuser Dual-Hop Amplify-and-Forward Relay System With FSO/RF Links
IEEE\/OSA Journal of Optical Communications and Networking, 2019This paper studies the performance of dual-hop multiuser relay systems over mixed free-space optical/radio frequency (FSO/RF) links. We consider a system where a source node wants to communicate with multiple users through a single relay. The source node
Ruijie Li, Te Chen, Luhai Fan, A. Dang
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Ressource management for Amplify and Forward and Decode and Forward relaying systems
2010 XIth International Workshop on Symbolic and Numerical Methods, Modeling and Applications to Circuit Design (SM2ACD), 2010This paper addresses the optimization of ressource allocation based on Decode and Forward (DF) or Amplify and Forward (AF) relaying techniques for packet access Orthogonal Frequency Division Multiple Access (OFDMA) networks. A power allocation quasi-optimal solution with a low complexity has been proposed for the two forwarding techniques.
Wafa Ben Hassen +2 more
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Cooperative Phase Sweep Amplify-and-Forward Transmission
2008 IEEE 68th Vehicular Technology Conference, 2008This work presents a new amplify-and-forward (AF) cooperative multiple input multiple output (MIMO) transmission scheme based on phase sweep transmit diversity. In a single hop cooperative link, the relay node imposes a phase sweep on the signal it receives from the source node.
Geoffrey G. Messier +2 more
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IEEE\/OSA Journal of Optical Communications and Networking, 2019
In this paper, we propose amplify-and-forward-based multihop non-line-of-sight (NLOS) ultraviolet (UV) communication with subcarrier intensity modulation to mitigate turbulence-induced fading.
Sudhanshu Arya, Yeon-ho Chung
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In this paper, we propose amplify-and-forward-based multihop non-line-of-sight (NLOS) ultraviolet (UV) communication with subcarrier intensity modulation to mitigate turbulence-induced fading.
Sudhanshu Arya, Yeon-ho Chung
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Overview of Amplify-and-Forward Relaying
2010Amplify-and-Forward (AF) is a simple cooperative strategy for ad-hoc networks with critical power constraints. It involves an amplification of the received signal in the analogue domain at the relays without further signal processing. This chapter gives an overview of the basic AF protocols in the literature and discuss recent research contributions in
Ioannis Krikidis, John S. Thompson
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