Exploiting Sparsity in Amplify-and-Forward Broadband Multiple Relay Selection

dc.contributor.VIAF113149196515374792028 (Al-Dhahir, N)
dc.contributor.authorHamila, R.
dc.contributor.authorAl-Dhahir, Neofal
dc.contributor.authorFoufou, S.
dc.contributor.utdAuthorAl-Dhahir, Neofal
dc.date.accessioned2020-02-10T22:49:34Z
dc.date.available2020-02-10T22:49:34Z
dc.date.issued2019-05-01
dc.descriptionNPRP grant 8-627-2-260 and NPRP grant 6-070-2-024 from the Qatar National Research Fund
dc.description.abstractCooperative communication has attracted significant attention in the last decade due to its ability to increase the spatial diversity order with only single-antenna nodes. However, most of the techniques in the literature are not suitable for large cooperative networks such as device-to-device and wireless sensor networks that are composed of a massive number of active devices, which significantly increases the relay selection complexity. Therefore, to solve this problem and enhance the spatial and frequency diversity orders of large amplify and forward cooperative communication networks, in this paper, we develop three multiple relay selection and distributed beamforming techniques that exploit sparse signal recovery theory to process the subcarriers using the low complexity orthogonal matching pursuit algorithm (OMP). In particular, by separating all the subcarriers or some subcarrier groups from each other and by optimizing the selection and beamforming vector(s) using OMP algorithm, a higher level of frequency diversity can be achieved. This increased diversity order allows the proposed techniques to outperform existing techniques in terms of bit error rate at a lower computation complexity. A detailed performance-complexity tradeoff, as well as Monte Carlo simulations, are presented to quantify the performance and efficiency of the proposed techniques. © 2013 IEEE.
dc.description.departmentErik Jonsson School of Engineering and Computer Science
dc.identifier.bibliographicCitationGouissem, A., R. Hamila, N. Al-Dhahir, and S. Foufou. 2019. "Exploiting Sparsity in Amplify-and-Forward Broadband Multiple Relay Selection." IEEE Access 7: 57985-57995, doi: 10.1109/ACCESS.2019.2914279
dc.identifier.issn2169-3536
dc.identifier.urihttp://dx.doi.org/10.1109/ACCESS.2019.2914279
dc.identifier.urihttps://hdl.handle.net/10735.1/7257
dc.identifier.volume7
dc.language.isoen
dc.publisherInstitute of Electrical and Electronics Engineers Inc.
dc.rightsOpen Access Publishing Agreement
dc.rights©2019 IEEE
dc.source.journalIEEE Access
dc.subjectAudio frequency
dc.subjectBeamforming
dc.subjectAntennas (Electronics)
dc.subjectBit error rate
dc.subjectMonte Carlo method
dc.subjectWireless sensor networks
dc.titleExploiting Sparsity in Amplify-and-Forward Broadband Multiple Relay Selection
dc.type.genrearticle

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