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Interference coordination method for CSI improvement in LTE uplink with carrier aggregation
| dc.contributor.author | Lema Rosas, María Ángel |
| dc.contributor.author | García Lozano, Mario |
| dc.contributor.author | Ruiz Boqué, Sílvia |
| dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions |
| dc.date.accessioned | 2016-03-31T12:16:36Z |
| dc.date.available | 2016-03-31T12:16:36Z |
| dc.date.issued | 2015 |
| dc.identifier.citation | Lema, M. A., Garcia-Lozano, M., Ruiz, S. Interference coordination method for CSI improvement in LTE uplink with carrier aggregation. A: European Conference on Networks and Communications. "2015 European Conference on Networks and Communications (EuCNC): June 29, 2015-July 2, 2015, Paris, France". París: Institute of Electrical and Electronics Engineers (IEEE), 2015, p. 249-253. |
| dc.identifier.isbn | 978-1-4673-7359-3 |
| dc.identifier.uri | http://hdl.handle.net/2117/84969 |
| dc.description | ©2015 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.description.abstract | Carrier Aggregation is an important feature in Long Term Evolution Advanced (LTE-A). It allows operators to provide larger operational bandwidths without the need of having a contiguous, large piece of spectrum. However, an increased bandwidth also needs a larger channel sounding to obtain channel state information (CSI), required for frequency domain scheduling and link adaptation. This constitutes a serious challenge for the uplink since wideband sounding reference signals cannot be transmitted by cell edge (power limited) users and hopped sounding requires a long time to sweep the entire transmission band, thus leading to outdated and less reliable CSI. Also, average interference and its variation in time can seriously jeopardize the CSI at the eNodeB. In this paper, we present an integration of inter cell interference coordination with CSI reporting by reducing the interference variability through controlled allocations. Results show that the entire CSI accuracy can be improved and so does the overall cell performance. |
| dc.format.extent | 5 p. |
| dc.language.iso | eng |
| dc.publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Comunicacions mòbils |
| dc.subject.lcsh | Long-Term Evolution (Telecommunications) |
| dc.title | Interference coordination method for CSI improvement in LTE uplink with carrier aggregation |
| dc.type | Conference report |
| dc.subject.lemac | Long-term evolution (Telecomunicacions) |
| dc.contributor.group | Universitat Politècnica de Catalunya. WiComTec - Grup de recerca en Tecnologies i Comunicacions Sense Fils |
| dc.identifier.doi | 10.1109/EuCNC.2015.7194078 |
| dc.description.peerreviewed | Peer Reviewed |
| dc.relation.publisherversion | http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7194078 |
| dc.rights.access | Open Access |
| local.identifier.drac | 16672816 |
| dc.description.version | Postprint (author's final draft) |
| local.citation.author | Lema, M. A.; Garcia-Lozano, M.; Ruiz, S. |
| local.citation.contributor | European Conference on Networks and Communications |
| local.citation.pubplace | París |
| local.citation.publicationName | 2015 European Conference on Networks and Communications (EuCNC): June 29, 2015-July 2, 2015, Paris, France |
| local.citation.startingPage | 249 |
| local.citation.endingPage | 253 |
