Robust joint transceiver design for multiuser MIMO systems with calibration errors

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buir.contributor.authorKazemi, Mohammad
buir.contributor.authorGöken, Ç.
buir.contributor.authorDuman, Tolga Mete
buir.contributor.orcidKazemi, Mohammad|0000-0001-5177-1874
buir.contributor.orcidDuman, Tolga Mete|0000-0002-5187-8660
dc.citation.epage5152en_US
dc.citation.spage5147en_US
dc.contributor.authorKazemi, Mohammad
dc.contributor.authorGöken, Ç.
dc.contributor.authorDuman, Tolga Mete
dc.coverage.spatialSeoul, Korea, Republic ofen_US
dc.date.accessioned2023-02-28T06:25:45Z
dc.date.available2023-02-28T06:25:45Z
dc.date.issued2022-08-11
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.descriptionConference Name: IEEE International Conference on Communications (ICC)en_US
dc.descriptionDate of Conference: 16-20 May 2022en_US
dc.description.abstractWe consider the downlink of a multiuser multiple-input multiple-output (MIMO) system operating in the time-division duplexing (TDD) mode. In this mode, assuming reciprocity, the channel coefficients estimated during the uplink channel training are utilized by the base station (BS) in the downlink data transmission. However, due to hardware mismatches, the uplink and downlink channels are not exactly the same, and therefore, there are calibration errors, which degrade the system performance. In this paper, our goal is to provide a transceiver design which has a robust performance under imperfect channel reciprocity. To this end, we first formulate a robust joint precoder and combiner design as a stochastic minimum mean square error (MMSE) optimization problem. Then, employing an alternating optimization approach, we propose an algorithm to obtain the precoding and combining matrices assuming imperfect CSI and calibration errors at both the BS and user sides. Extensive simulation results show that the proposed robust joint precoder/combiner outperforms the existing solutions in the literature.en_US
dc.description.provenanceSubmitted by Ayça Nur Sezen (ayca.sezen@bilkent.edu.tr) on 2023-02-28T06:25:45Z No. of bitstreams: 1 Robust_joint_transceiver_design_for_multiuser_MIMO_systems_with_calibration_errors.pdf: 1004084 bytes, checksum: 8576155fe0fff9d4503f0c2b820f8be1 (MD5)en
dc.description.provenanceMade available in DSpace on 2023-02-28T06:25:45Z (GMT). No. of bitstreams: 1 Robust_joint_transceiver_design_for_multiuser_MIMO_systems_with_calibration_errors.pdf: 1004084 bytes, checksum: 8576155fe0fff9d4503f0c2b820f8be1 (MD5) Previous issue date: 2022-08-11en
dc.identifier.doi10.1109/ICC45855.2022.9838519en_US
dc.identifier.issn1550-3607
dc.identifier.urihttp://hdl.handle.net/11693/111868
dc.language.isoEnglishen_US
dc.publisherInstitute of Electrical and Electronics Engineersen_US
dc.relation.isversionofhttps://doi.org/10.1109/ICC45855.2022.9838519en_US
dc.source.titleIEEE International Conference on Communications (ICC)en_US
dc.subjectMultiuser MIMOen_US
dc.subjectPrecodingen_US
dc.subjectCombiningen_US
dc.subjectCalibration errorsen_US
dc.subjectRobust designen_US
dc.subjectImperfect CSIen_US
dc.titleRobust joint transceiver design for multiuser MIMO systems with calibration errorsen_US
dc.typeConference Paperen_US

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