Random vs structured pilot assignment in cell-free massive MIMO wireless networks

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• dc.contributor.author Attarifar, Masoud
• dc.contributor.author Abbasfar, Aliazam
• dc.contributor.author Lozano Solsona, Angel
• dc.date.accessioned 2019-04-11T07:18:48Z
• dc.date.available 2019-04-11T07:18:48Z
• dc.date.issued 2018
• dc.description.abstract This paper addresses the performance improvement that structured pilot assignment policies can bring about, relative to a random pilot assignment, in cell-free massive MIMO wireless networks. It is shown that structured policies can deliver a multiple-fold reduction in the pilot overhead required to keep pilot contamination at some acceptably low level. While the implementation of the structured policies considered in the paper might require some degree of centralized control, their performance also captures what distributed nonrandom pilot assignment schemes (e.g., greedy or collision-detecting algorithms) can hope to approach.
• dc.description.sponsorship The work of A. Lozano was supported by Project TEC2015-66228-P (MINECO/FEDER, UE) and by the European Research Council under the H2020 Framework Programme/ERC grant agreement 694974.
• dc.format.mimetype application/pdf
• dc.identifier.citation Attarifar M, Abbasfar A, Lozano A. Random vs structured pilot assignment in cell-free massive MIMO wireless networks. In: 54th IEEE International Conference on Communications; 2018 May 20-24; Kansas City, USA. New Jersey: Institute of Electrical and Electronics Engineers; 2018. [6 p.]. DOI: 10.1109/ICCW.2018.8403508
• dc.identifier.doi http://dx.doi.org/10.1109/ICCW.2018.8403508
• dc.identifier.uri http://hdl.handle.net/10230/37089
• dc.language.iso eng
• dc.publisher Institute of Electrical and Electronics Engineers (IEEE)
• dc.relation.ispartof 54th IEEE International Conference on Communications; 2018 May 20-24; Kansas City, USA. New Jersey: Institute of Electrical and Electronics Engineers; 2018. [6 p.].
• dc.relation.projectID info:eu-repo/grantAgreement/EC/H2020/694974
• dc.relation.projectID info:eu-repo/grantAgreement/ES/1PE/TEC2015-66228-P
• dc.rights © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. http://dx.doi.org/10.1109/ICCW.2018.8403508
• dc.rights.accessRights info:eu-repo/semantics/openAccess
• dc.subject.keyword Signal to noise ratio
• dc.subject.keyword MIMO communication
• dc.subject.keyword Interference
• dc.subject.keyword Contamination
• dc.subject.keyword Fading channels
• dc.subject.keyword Antennas
• dc.subject.keyword Channel estimation
• dc.title Random vs structured pilot assignment in cell-free massive MIMO wireless networks
• dc.type info:eu-repo/semantics/conferenceObject
• dc.type.version info:eu-repo/semantics/acceptedVersion