dc.contributor.author | Qi, C | |
dc.contributor.author | Hu, J | |
dc.contributor.author | Du, Y | |
dc.contributor.author | Nallanathan, A | |
dc.date.accessioned | 2024-07-11T10:50:04Z | |
dc.date.available | 2024-07-11T10:50:04Z | |
dc.date.issued | 2023-11-10 | |
dc.identifier.citation | C. Qi, J. Hu, Y. Du and A. Nallanathan, "Multiuser Beamforming for Partially-Connected Millimeter Wave Massive MIMO," in IEEE Transactions on Vehicular Technology, vol. 73, no. 4, pp. 5977-5981, April 2024, doi: 10.1109/TVT.2023.3331713. keywords: {Radio frequency;Array signal processing;Millimeter wave communication;Massive MIMO;Symbols;Interference;Computational complexity;Analog beamforming;hybrid beamforming;millimeter wave (mmWave) communications;partially-connected structure}, | en_US |
dc.identifier.issn | 0018-9545 | |
dc.identifier.uri | https://qmro.qmul.ac.uk/xmlui/handle/123456789/98004 | |
dc.description.abstract | Multiuser beamforming is considered for partially-connected millimeter wave massive MIMO systems. Based on perfect channel state information (CSI), a low-complexity hybrid beamforming scheme that decouples the analog beamformer and the digital beamformer is proposed to maximize the sum-rate. The analog beamformer design is modeled as a phase alignment problem to harvest the array gain. Given the analog beamformer, the digital beamformer is designed by solving a weighted minimum mean squared error problem. Then based on imperfect CSI, an analog-only beamformer design scheme is proposed, where the design problem aims at maximizing the desired signal power on the current user and minimizing the power on the other users to mitigate the multiuser interference. The original problem is then transformed into a series of independent beam nulling subproblems, where an efficient iterative algorithm using the majorization-minimization framework is proposed to solve the subproblems. Simulation results show that, under perfect CSI, the proposed scheme achieves almost the same sum-rate performance as the existing schemes but with lower computational complexity; and under imperfect CSI, the proposed analog-only beamforming design scheme can effectively mitigate the multiuser interference. | en_US |
dc.format.extent | 5977 - 5981 | |
dc.publisher | IEEE | en_US |
dc.relation.ispartof | IEEE Transactions on Vehicular Technology | |
dc.rights | © 2023 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. | |
dc.title | Multiuser Beamforming for Partially-Connected Millimeter Wave Massive MIMO | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.1109/TVT.2023.3331713 | |
pubs.issue | 4 | en_US |
pubs.notes | Not known | en_US |
pubs.publication-status | Published | en_US |
pubs.volume | 73 | en_US |
rioxxterms.funder | Default funder | en_US |
rioxxterms.identifier.project | Default project | en_US |
rioxxterms.funder.project | b215eee3-195d-4c4f-a85d-169a4331c138 | en_US |