An improved interference alignment scheme for frequency selective channels

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RECERCAT Home > Universitat Politècnica de Catalunya > Documents de recerca > View document

To access the full text documents, please follow this link: http://hdl.handle.net/2117/9619

dc.contributor	Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.contributor	Universitat Politècnica de Catalunya. SPCOM - Grup de Recerca de Processament del Senyal i Comunicacions
dc.contributor.author	Shen, Minqi
dc.contributor.author	Host-Madsen, Anders
dc.contributor.author	Vidal Manzano, José
dc.date	2008
dc.identifier.citation	Shen, M.; Host-Madsen, A.; Vidal, J. An improved interference alignment scheme for frequency selective channels. A: IEEE International Symposium on Information Theory. "ISIT 2008". Toronto: 2008, p. 559-563.
dc.identifier.citation	978-1-4244-2256-2
dc.identifier.citation	10.1109/ISIT.2008.4595048
dc.identifier.uri	http://hdl.handle.net/2117/9619
dc.language.iso	eng
dc.relation	info:eu-repo/grantAgreement/EC/FP7/215282/EU/Reconfigurable OFDMA-based Cooperative NetworKs Enabled by Agile SpecTrum Use/ROCKET
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Àrees temàtiques de la UPC::Enginyeria de la telecomunicació
dc.subject	Antennas
dc.subject	Signal theory (Telecommunication)
dc.subject	Multiuser detection (Telecommunication)
dc.subject	Senyal, Teoria del (Telecomunicació)
dc.title	An improved interference alignment scheme for frequency selective channels
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/conferenceObject
dc.description.abstract	In this paper, the achievable rate of a K-user interference channel with single antenna at individual node is studied. Interference alignment and zero forcing are applied at the transmitter and receiver, respectively. It is well known from the paper [1] of Cadambe and Jafar that a multiplexing gain (degrees of freedom) of K/2 is achievable. We propose two new pre-coding methods and study how they enhance the achievable rate in terms of the high SNR offset, while maintain the optimality of degree of freedom the Cadambe-Jafar scheme achieved.

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