| dc.contributor.author | Xie, Z | en_US |
| dc.contributor.author | Liu, Y | en_US |
| dc.contributor.author | Xu, J | en_US |
| dc.contributor.author | Wu, X | en_US |
| dc.contributor.author | Nallanathan, A | en_US |
| dc.date.accessioned | 2024-07-12T09:52:38Z | |
| dc.date.issued | 2023-12-01 | en_US |
| dc.identifier.issn | 2162-2337 | en_US |
| dc.identifier.uri | https://qmro.qmul.ac.uk/xmlui/handle/123456789/98067 | |
| dc.description.abstract | Performance analysis is carried out in a near-field multiple-input multiple-output (MIMO) system for both discrete and continuous aperture antennas. The effective degrees of freedom (EDoF) is first derived. It is shown that near-field MIMO systems have a higher EDoF than free-space far-field ones. Additionally, the near-field EDoF further depends on the communication distance. Based on the derived EDoF, closed-form expressions of channel capacity with a fixed distance are obtained. As a further advance, with randomly deployed receivers, ergodic capacity is derived. Simulation results reveal that near-field MIMO has an enhanced multiplexing gain even under line-of-sight transmissions. In addition, the performance of discrete MIMO converges to that of continuous aperture MIMO. | en_US |
| dc.format.extent | 2258 - 2262 | en_US |
| dc.relation.ispartof | IEEE Wireless Communications Letters | en_US |
| 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 | Performance Analysis for Near-Field MIMO: Discrete and Continuous Aperture Antennas | en_US |
| dc.type | Article | |
| dc.identifier.doi | 10.1109/LWC.2023.3317492 | en_US |
| pubs.issue | 12 | en_US |
| pubs.notes | Not known | en_US |
| pubs.publication-status | Published | en_US |
| pubs.volume | 12 | 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 |
