dc.contributor
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.contributor
Universitat Politècnica de Catalunya. A&MP - Grup de Processament d'Arrays i Sistemes Multicanal
dc.contributor.author
Pablo González, Mari Luz
dc.contributor.author
García Armada, Ana
dc.contributor.author
Sánchez Fernández, Matilde
dc.contributor.author
Pascual Iserte, Antonio
dc.contributor.author
Payaró Llisterri, Miquel
dc.identifier
Pablo, M. [et al.]. Performance of waterfilling-based schemes for interference cancellation in 4G networks. A: International Workshop on Cognitive Information Processing. "2012 3rd International Workshop on Cognitive Incromation Processing (CIP)". Institute of Electrical and Electronics Engineers (IEEE), 2012, p. 1-6.
dc.identifier
978-1-4673-1878-5
dc.identifier
https://hdl.handle.net/2117/17643
dc.identifier
10.1109/CIP.2012.6232900
dc.description.abstract
In this work we consider the optimization of the power assigned to the user streams in a coordinated base station downlink environment with Orthogonal Frequency Division Modulation (OFDM). In this scenario the base stations perform distributed cooperative processing with a block diagonalization scheme to remove interference among users. Two schemes based on the waterfilling technique are proposed and compared to the optimal solution, which can be obtained numerically, by using convex optimization. We show that the proposed schemes achieve a performance, in terms of weighted sum rate, very close to the optimal, without the heavy computational complexity required by the numerical solution. These sum rates are compared in a simplified scenario consisting of two-user and two-cell. Other more realistic multicell scenario and some examples of achievable rates are presented too.
dc.description.abstract
Peer Reviewed
dc.description.abstract
Postprint (published version)
dc.format
application/pdf
dc.publisher
Institute of Electrical and Electronics Engineers (IEEE)
dc.relation
http://ieeexplore.ieee.org/xpl/articleDetails.jsp;jsessionid=sHjvQlrhhWbYBJlLGyxT17b6TpTpB2ctPq0Q93BCpkxYyPt1RpQG!-2124795046?arnumber=6232900&contentType=Conference+Publications
dc.relation
info:eu-repo/grantAgreement/EC/FP7/247223/EU/Advanced Radio Interface Technologies for 4G Systems/ARTIST4G
dc.rights
Restricted access - publisher's policy
dc.subject
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica::Comunicacions mòbils
dc.subject
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Radiocomunicació i exploració electromagnètica
dc.subject
Mobile communication systems
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Signal theory (Telecommunication)
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Block diagonalization
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Interference cancellation
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Multi-cell scenarios
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Numerical solution
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Optimal solutions
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Weighted sum-rate
dc.subject
Comunicacions mòbils, Sistemes de
dc.subject
Senyal, Teoria del (Telecomunicació)
dc.title
Performance of waterfilling-based schemes for interference cancellation in 4G networks
dc.type
Conference report
