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Robust Cooperative Relay Beamforming
[article]
2017
arXiv
pre-print
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In this paper, the robust distributed relay beamforming problem is solved using the worst case approach, where the problem solution has been involved because of the effect of uncertainty of channel knowledge ...
Monte-Carlo simulations are presented to verify the performance improvement of our proposed robust problem over existing robust and non-robust problems in terms of transmit power and symbol error probability ...
CONCLUSION In this paper, the robust optimal power allocation algorithm for multi-user cooperative networks was solved in a more accurate approach compared to the previous works. ...
arXiv:1703.01873v1
fatcat:kjfohzhgnjhizm65d5z64lhsmu
Robust Cooperative Relay Beamforming Design for Security
2015
KSII Transactions on Internet and Information Systems
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While the security scheme has been previously investigated with perfect channel state information (CSI) in the presence of a passive eavesdropper, this paper focuses on researching the robust cooperative ...
relay beamforming mechanism for wireless relay networks which makes use of artificial noise (AN) to confuse the eavesdropper and increase its uncertainty about the source message. ...
In [20] , the authors investigated the physical-layer security issue of an amplify-and-forward (AF) relay network and proposed a joint cooperative beamforming and cooperative jamming design that was robust ...
doi:10.3837/tiis.2015.11.013
fatcat:5ecinfwqynaenm4pgt3xu5t3hi
Outage Constraint Robust Cooperative Beamforming and Jamming Design for Secure AF Relay Networks
2021
Mathematical Problems in Engineering
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This paper investigates a joint robust scheme in a secrecy relay network where distributed relays perform cooperative beamforming and a friendly jammer transmits jamming signal to enhance the information ...
Acknowledgments is study was supported by the Industry-University-Research Cooperation Project of Jiangsu Province under grant no. BY2018282. ...
Recently, cooperative transmission using relays to improve the physical layer security in wireless network has attracted increasing attention [1] , while the cooperative beamforming (CB) and cooperative ...
doi:10.1155/2021/5919617
fatcat:q67ajokbhredvjuhryynwlj7se
Robust beamforming and cooperative jamming for secure transmission in DF relay systems
2016
EURASIP Journal on Wireless Communications and Networking
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In this paper, we study robust joint beamforming and cooperative jamming (CJ) in a secure decode-and-forward (DF) relay system in the presence of multiple eavesdroppers, in which a multi-antenna DF relay ...
the relay subject to its total transmit power constraint. ...
bound δ (denoted as "robust with CJ"), robust beamforming without CJ scheme (denoted as "robust without CJ"), and robust beamforming without DT scheme (denoted as "robust without DT") under the error ...
doi:10.1186/s13638-016-0560-1
fatcat:h3ab5aslfbhsrpoquwoud2oh5q
Cooperative Jamming and Beamforming in Amplify-and-Forward Relay Systems for Physical-Layer Security
2015
Proceedings of the 11th EAI International Conference on Heterogeneous Networking for Quality, Reliability, Security and Robustness
unpublished
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In this paper, we propose a hybrid cooperative beamforming and jamming scheme to enhance the physical-layer security in the two-way relay network with an eavesdropper and a primary receiver. ...
Cooperative beamforming and jamming are designed to maximize the secrecy rate with a total transmit power constraint of the relays and interference power constraint at the primary receiver. ...
of the relays. we have proposed a joint cooperative beamforming and jamming scheme to enhance the security. ...
doi:10.4108/eai.19-8-2015.2261538
fatcat:wrxmwv4ganhfhdiw6padnmloiq
Robust Cooperative Beamforming and Its Feasibility Analysis in Multiuser Multirelay Networks
2022
IEEE Access
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The optimal cooperative beamforming problem is formulated as the maximum relay transmit power minimization problem, subject to per-relay transmit power and the minimum destination signal-to-noise ratio ...
In this paper, we study the optimal cooperative beamforming problem in the amplify-andforward (AF) multi-user and multi-relay networks, which face the challenges of rapid node number variations and per-node ...
direct-link and relay-link signals are jointly exploited to formulate the cooperative beamforming problem. ...
doi:10.1109/access.2022.3174345
fatcat:f5x4ukze5bawtmvebcquwhd6ni
Statistically robust cooperative beamforming for cognitive radio networks
2013
2013 IEEE International Conference on Communications (ICC)
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Under these assumptions, we propose a new statistically robust CR cooperative relay beamformer where either the total relay transmit power or the cognitive destination signal-to-interference-and-noise ...
We formulate the robust total relay power and the cognitive destination SINR optimisation problems as a convex second order cone program and a convex feasibility problem, respectively, that provide near ...
CONCLUSIONS In this paper, we have studied a statistically robust cooperative beamformer for a CR relay network under the assumption of partial CSI. ...
doi:10.1109/icc.2013.6654950
dblp:conf/icc/SinghTDC13
fatcat:ki55wx634rblpib5ad2ffcte5q
Collaborative Uplink Transmit Beamforming With Robustness Against Channel Estimation Errors
2009
IEEE Transactions on Vehicular Technology
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In the first algorithm, the robust beamforming vector is computed at the base station using the uplink data and fed back to the cooperating relay terminals. ...
We present a collaborative uplink transmit beamforming strategy that can be employed at the relay terminals to provide robustness against uncertainties in the channel state information. ...
Collaborative transmit beamforming can also be applied in wireless relay networks. ...
doi:10.1109/tvt.2008.923668
fatcat:pdhkdulkb5asnbo77ljcy4kja4
Generalized Beamforming Design for Cooperative MIMO Multirelay Networks with Infinite Constraints and Imperfect CSI
2018
Mathematical Problems in Engineering
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A generalized base station-relay-user equipment (BS-Relay-UE) beamforming design is investigated for a cooperative multiple-input multiple-output (MIMO) multirelay networks with imperfect channel state ...
In order to minimize the worst-case mean square error (MSE) which is subject to a semi-infinite (SI) relay power constraints, a generalized optimal beamforming structure for the relay amplifying matrix ...
Generalized BS-Relay-UE Beamforming Design
The Optimal Relay Beamforming Design. ...
doi:10.1155/2018/9797549
fatcat:qxgxigf6xbcldkfd5g42u4vyby
Robust distributed beamforming for wireless relay networks
2009
2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications
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In this paper, we consider a robust distributed beamforming design that minimizes total relay transmit power with signal-to-noise ratio (SNR) constraint for a wireless relay network in the presence of ...
The distributed beamforming design based on the assumption of perfect CSI at the relays fails to guarantee the SNR when the CSI available at the relay nodes is imperfect. ...
The proposed robust beamformer design was based on total relay transmit power minimization under SNR constraint. ...
doi:10.1109/pimrc.2009.5449974
dblp:conf/pimrc/UbaidullaC09
fatcat:mpryikrkgzf7tcjpddkzguzxlm
Opportunistic relaying and jamming with robust design in hybrid full/half-duplex relay system
2016
EURASIP Journal on Wireless Communications and Networking
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Then, the relay switches to HD protocol to transmit the decoded signals. Meanwhile, jammers emit cooperative jamming (CJ) signals to interfere the eavesdropper at two transmission slots. ...
robust design based on imperfect channel conditions. ...
Cooperative jamming with robust design Unlike traditional opportunistic relay selection, except the chosen relay, the remaining nodes would stay idle. ...
doi:10.1186/s13638-016-0621-5
fatcat:7etln657frbolejl2g6pefd7te
Multicell Cooperation and MIMO Technologies for Broadcasting and Broadband Communications
2010
International Journal of Digital Multimedia Broadcasting
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The last paper of this special issue "Robust MMSE transceiver designs for downlink MIMO systems with multicell cooperation" by J. ...
When cell cooperation is available, the robust approaches provide a remedy for solving the cell edge problem without reducing the number of data streams. ...
The last paper of this special issue "Robust MMSE transceiver designs for downlink MIMO systems with multicell cooperation" by J. ...
doi:10.1155/2010/848527
fatcat:ddc3zker4jg23ahpbngehyum2u
Worst-case-based robust beamforming for wireless cooperative networks
2014
EURASIP Journal on Advances in Signal Processing
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In this paper, we propose two worst-case-based distributed beamforming techniques that are robust to the channel estimation errors. ...
It is known that distributed beamforming techniques can improve the performance of relay networks by using channel state information (CSI). ...
Different relaying strategies have been proposed to achieve cooperative diversity. ...
doi:10.1186/1687-6180-2014-96
fatcat:i74amllixba5rde4vlvif6zay4
Distributed Beamforming for Relay Networks Based on Second-Order Statistics of the Channel State Information
2008
IEEE Transactions on Signal Processing
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In [17] and [18] , a distributed beamforming strategy has been developed for the case where the relaying nodes cooperate to build a beam towards the receiver under individual relay power constraints ...
This is a well-known phenomenon and has been studied in the recent literature where robust beamforming has been of primary concern (see, for example, [23] and references therein). ...
doi:10.1109/tsp.2008.925945
fatcat:kiifusho7rgn3kjlwlg323jw4u
Convex Optimization-Based Beamforming
2010
IEEE Signal Processing Magazine
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I n this article, an overview of advanced convex optimization approaches to multisensor beamforming is presented, and connections are drawn between different types of optimization-based beamformers that ...
apply to a broad class of receive, transmit, and network beamformer design problems. ...
Information-theoretic analysis of the relay channel [39] and multiple-relay networks [40] has paved the way for more practical network cooperation schemes. ...
doi:10.1109/msp.2010.936015
fatcat:7j2o7wrw6jdazbsxizsghhsi4a
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