Optimal Power Allocation in an Amplify-and-Forward Untrusted Relay Network with Imperfect Channel State Information
Sign Up to like & getrecommendations! Published in 2018 at "Wireless Personal Communications"
DOI: 10.1007/s11277-018-5762-x
Abstract: The characteristics of the wireless medium create difficulty to shield the data transmission from unauthorized recipients. In this paper, power optimization in an amplify-and-forward untrusted relay network is presented, using cooperative jamming transmission to prevent… read more here.
Keywords: network; forward untrusted; untrusted relay; power ... See more keywords
Robust recursive filtering for uncertain stochastic systems with amplify-and-forward relays
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Systems Science"
DOI: 10.1080/00207721.2020.1754960
Abstract: ABSTRACT This paper is concerned with the recursive filtering problem for a class of uncertain systems with amplify-and-forward (AF) relays. The parameter uncertainties are described by a set of norm-bounded matrices. An AF relay is… read more here.
Keywords: recursive filtering; amplify forward; transmission power; forward relays ... See more keywords
Sum Achievable Rate Maximization in Orbital Angular Momentum-Based Amplify-and-Forward Two-Way Relay Networks
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2021.3057387
Abstract: In this letter, to enlarge wireless coverage and increase spectrum efficiency, we propose the orbital angular momentum (OAM)-based amplify-and-forward two-way relay network. Our objective is to maximize the sum achievable rate under individual transmission power… read more here.
Keywords: angular momentum; two way; amplify forward; based amplify ... See more keywords
A Novel Average Autoencoder-Based Amplify-and-Forward Relay Networks With Hardware Impairments
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Cognitive Communications and Networking"
DOI: 10.1109/tccn.2022.3164901
Abstract: In this paper, we propose a novel Average autoencoder (AE)-based amplify-and-forward (AF) relay networks impacted by the I/Q imbalance (IQI) and additional hardware impairments (AHI), where the source and destination nodes are equipped with neural… read more here.
Keywords: autoencoder based; average autoencoder; novel average; relay ... See more keywords
Secure Multiple Amplify-and-Forward Relaying Over Correlated Fading Channels
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DOI: 10.1109/tcomm.2017.2691712
Abstract: This paper quantifies the impact of correlated fading on secure communication of multiple amplify-and-forward (AF) relaying networks. In such a network, the base station (BS) is equipped with multiple antennas and communicates with the destination… read more here.
Keywords: forward relaying; relay; selection; correlated fading ... See more keywords
Amplify-and-Forward Relaying With Maximal Ratio Combining Over Fluctuating Two-Ray Channel: Non-Asymptotic and Asymptotic Performance Analysis
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Communications"
DOI: 10.1109/tcomm.2020.3024579
Abstract: Fluctuating two-ray (FTR) channel model was shown to effectively characterize millimeter wave (mmWave) communication channels. In this article, we adopt FTR to investigate amplify-and-Forward (AF) mmWave relaying system. Two communications scenarios are considered corresponding to… read more here.
Keywords: two ray; performance; amplify forward; forward relaying ... See more keywords
Secure Communication for Amplify-and-Forward Relay Networks With Finite Alphabet Input
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Information Forensics and Security"
DOI: 10.1109/tifs.2018.2818065
Abstract: This paper considers secure communication for amplify-and-forward (AF) relay networks with finite alphabet input. The joint optimization of power selection and beamforming design for improving the physical layer security of AF relay networks with single… read more here.
Keywords: secure communication; relay; relay networks; power ... See more keywords
Auxiliary Particle Filtering Over Sensor Networks Under Protocols of Amplify-and-Forward and Decode-and-Forward Relays
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DOI: 10.1109/tsipn.2022.3212318
Abstract: In this paper, the particle filtering problem is investigated for a class of stochastic systems with multiple sensors under signal relays. To improve the performance of signal transmissions, a relay is deployed between each sensor… read more here.
Keywords: decode forward; forward decode; particle filtering; particle ... See more keywords
Millimeter-Wave Secrecy Beamforming Designs for Two-Way Amplify-and-Forward MIMO Relaying Networks
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2016.2578943
Abstract: The gigahertz unlicensed bandwidth spectrum endows millimeter-wave (mmWave) communications with the great potential of realizing high data transmission rates. Similar to all wireless transmission technologies, mmWave communications are also susceptible to security threats. This problem… read more here.
Keywords: two way; way amplify; secrecy beamforming; beamforming designs ... See more keywords
Impact of Imperfect Source-to-Relay CSI in Amplify-and-Forward Relay Networks
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DOI: 10.1109/tvt.2016.2622723
Abstract: Cooperative communication assisted by relays is regarded as an effective means of achieving spatial diversity. The achievable diversity gain relies on the channel-state information (CSI) that can be acquired at the destination because spatial diversity… read more here.
Keywords: relay; relay csi; source relay; quantization ... See more keywords
Securing Full-Duplex Amplify-and-Forward Relay-Aided Communications Through Processing-Time Optimization
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Vehicular Technology"
DOI: 10.1109/tvt.2022.3163376
Abstract: We investigate physical-layer security of the full-duplex (FD) amplify-and-forward (AF) relay channel. We provide a new perspective on the problem and show that the processing time (delay) at the relay can be exploited to improve… read more here.
Keywords: full duplex; duplex amplify; relay; amplify forward ... See more keywords