dc.contributor
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.contributor
Universitat Politècnica de Catalunya. WiComTec - Grup de recerca en Tecnologies i Comunicacions Sense Fils
dc.contributor.author
Lema Rosas, María Ángel
dc.contributor.author
García Lozano, Mario
dc.contributor.author
Ruiz Boqué, Sílvia
dc.identifier
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
978-1-4673-7359-3
dc.identifier
https://hdl.handle.net/2117/84969
dc.identifier
10.1109/EuCNC.2015.7194078
dc.description.abstract
©2015 IEEE. Personal use of this material is permitted. Permission
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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transmission band, thus leading to outdated and less reliable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.description.abstract
Peer Reviewed
dc.description.abstract
Postprint (author's final draft)
dc.format
application/pdf
dc.publisher
Institute of Electrical and Electronics Engineers (IEEE)
dc.relation
http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=7194078
dc.subject
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Comunicacions mòbils
dc.subject
Long-Term Evolution (Telecommunications)
dc.subject
Long-term evolution (Telecomunicacions)
dc.title
Interference coordination method for CSI improvement in LTE uplink with carrier aggregation
dc.type
Conference report
