Publication
An iterative pilot-data aided estimator for OFDM-based relay-assisted systems
| dc.contributor.author | Neves, D. | |
| dc.contributor.author | Ribeiro, Carlos | |
| dc.contributor.author | Silva, A. | |
| dc.contributor.author | Gameiro, A. | |
| dc.date.accessioned | 2025-11-04T16:30:35Z | |
| dc.date.available | 2025-11-04T16:30:35Z | |
| dc.date.issued | 2011-10 | |
| dc.description.abstract | We propose and assess a pilot-data aided channel estimation scheme for realistic relay-assisted scenarios designed for the downlink SFBC OFDM-based systems. We consider that both the base station and the relay node are equipped with an antenna array whereas the user terminal is a single antenna device. The relay protocol considered is equalise-and-forward. The channel estimation method iteratively uses the information carried by the pilots and data to improve the estimate of the equivalent channels for the path Base Station - Relay Node - User Terminal. The MMSE criterion is used in the design of the estimator for both the pilot-based and data-aided iterations. The results show the benefits of cooperation in terms of MSE and also show that the proposed scheme allows, with a single data iteration, a reduction of the number of pilots when compared with non-data-aided schemes. | eng |
| dc.identifier.citation | D. Neves, C. Ribeiro, A. Silva and A. Gameiro, "An iterative pilot-data aided estimator for OFDM-based relay-assisted systems," 2011 IEEE Third Latin-American Conference on Communications, Belem, Brazil, 2011, pp. 1-6, doi: 10.1109/LatinCOM.2011.6107414. | |
| dc.identifier.doi | 10.1109/latincom.2011.6107414 | |
| dc.identifier.isbn | 978-1-4673-0277-7 | |
| dc.identifier.issn | 2330-989X | |
| dc.identifier.uri | http://hdl.handle.net/10400.8/14502 | |
| dc.language.iso | eng | |
| dc.peerreviewed | yes | |
| dc.publisher | IEEE | |
| dc.relation.hasversion | https://ieeexplore.ieee.org/document/6107414 | |
| dc.relation.ispartof | 2011 IEEE Third Latin-American Conference on Communications | |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | |
| dc.title | An iterative pilot-data aided estimator for OFDM-based relay-assisted systems | eng |
| dc.type | conference paper | |
| dspace.entity.type | Publication | |
| oaire.citation.conferenceDate | 2011-10 | |
| oaire.citation.conferencePlace | Belém, Brasil | |
| oaire.citation.title | 2011 IEEE Third Latin-American Conference on Communications | |
| oaire.version | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |
| person.familyName | Ribeiro | |
| person.givenName | Carlos | |
| person.identifier.orcid | 0000-0001-7484-6779 | |
| relation.isAuthorOfPublication | a388f639-664e-435c-8e1a-d6aee9213f70 | |
| relation.isAuthorOfPublication.latestForDiscovery | a388f639-664e-435c-8e1a-d6aee9213f70 |