Publication: Effects of channel estimation on multiuser virtual MIMO-OFDMA relay-based networks
dc.affiliation.dpto | UC3M. Departamento de Teoría de la Señal y Comunicaciones | es |
dc.affiliation.grupoinv | UC3M. Grupo de Investigación: Comunicaciones | es |
dc.contributor.author | Gil-Jiménez, Víctor P. | |
dc.contributor.author | Ribeiro, Carlos | |
dc.contributor.author | Gameiro, Atilio | |
dc.contributor.author | García-Armada, Ana | |
dc.date.accessioned | 2012-05-31T12:35:41Z | |
dc.date.available | 2012-05-31T12:35:41Z | |
dc.date.issued | 2010-11-11 | |
dc.description.abstract | A practical multiuser cooperative transmission scheme denoted as Virtual Maximum Ratio Transmission (VMRT) for multiple-input multiple-output-orthogonal frequency division multiple access (MIMO-OFDMA) relay-based networks is proposed and evaluated in the presence of a realistic channel estimation algorithm and using low-density parity-check (LDPC) codes. It is shown that this scheme is robust against channel estimation errors. It offers diversity and array gain, keeping the complexity low with a multiuser and multiantenna channel estimation algorithm that is simple and efficient. In addition, the combination with LDPC codes provides improved gains; diversity gains larger than 6 dB can be easily obtained with a reduced number of relays. Thus, this scheme can be used to extend coverage or increase system throughput by using simple cooperative OFDMA-based relays. | |
dc.description.sponsorship | The authors would like to thank Jae-Yun Ko for his valuable help at the beginning of our work. This work has been partly funded by the projects MULTIADAPTIVE (TEC2008-06327- C03-02), COMONSENS (CSD2008-00010) and CODIV (ICT-2007-215477). | |
dc.description.status | Publicado | |
dc.format.mimetype | application/pdf | |
dc.identifier.bibliographicCitation | EURASIP Journal on Wireless Communications and Networking 2010, 2010:764784 | |
dc.identifier.doi | 10.1155/2010/764784 | |
dc.identifier.issn | 1687-1472 | |
dc.identifier.publicationtitle | EURASIP Journal on Wireless Communications and Networking | |
dc.identifier.publicationvolume | 2010:764784 | |
dc.identifier.uri | https://hdl.handle.net/10016/14426 | |
dc.language.iso | eng | |
dc.publisher | SpringerOpen | |
dc.relation.publisherversion | http://jwcn.eurasipjournals.com/content/2010/1/764784 | |
dc.rights | © 2010 Víctor P. Gil Jiménez et al. | |
dc.rights.accessRights | open access | |
dc.subject.eciencia | Telecomunicaciones | |
dc.subject.other | MIMO-OFDM systems | |
dc.subject.other | Multiuser | |
dc.title | Effects of channel estimation on multiuser virtual MIMO-OFDMA relay-based networks | |
dc.type | research article | * |
dc.type.hasVersion | VoR | * |
dspace.entity.type | Publication |
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