Retrospective interference alignment for the 3-user MIMO interference channel with delayed CSIT

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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	Torrellas Socastro, Marc
dc.contributor.author	Agustín de Dios, Adrián
dc.contributor.author	Vidal Manzano, José
dc.date	2014
dc.identifier.citation	Torrellas, M.; Agustin, A.; Vidal, J. Retrospective interference alignment for the 3-user MIMO interference channel with delayed CSIT. A: IEEE International Conference on Acoustics, Speech, and Signal Processing. "Acoustics, Speech and Signal Processing (ICASSP), 2014 IEEE International Conference on". Florència: Institute of Electrical and Electronics Engineers (IEEE), 2014, p. 2445-2449.
dc.identifier.citation	978-147992892-7
dc.identifier.citation	10.1109/ICASSP.2014.6854039
dc.identifier.uri	http://hdl.handle.net/2117/24338
dc.language.iso	eng
dc.publisher	Institute of Electrical and Electronics Engineers (IEEE)
dc.relation	http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6854039
dc.relation	info:eu-repo/grantAgreement/EC/FP7/318784/EU/Distributed computing, storage and radio resource allocation over cooperative femtocells/TROPIC
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Àrees temàtiques de la UPC::Enginyeria de la telecomunicació
dc.subject	MIMO systems
dc.subject	Degrees of freedom
dc.subject	Delayed CSIT
dc.subject	Interference alignment
dc.subject	MIMO
dc.subject	Sistemes MIMO
dc.title	Retrospective interference alignment for the 3-user MIMO interference channel with delayed CSIT
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/conferenceObject
dc.description.abstract	The degrees of freedom (DoF) of the 3-user multiple input multiple output interference channel (3-user MIMO IC) are investigated where there is delayed channel state information at the transmitters (dCSIT). We generalize the ideas of Maleki et al. about Retrospective Interference Alignment (RIA) to be applied to the MIMO IC, where transmitters and receivers are equipped with (M, N) antennas, respectively. We propose a two-phase transmission scheme where the number of slots per phase and number of transmitted symbols are optimized by solving a maximization problem. Finally, we review the existing achievable DoF results in the literature as a function of the ratio between transmitting and receiving antennas ¿ = M/N. The proposed scheme improves all other strategies when ¿ (1/2, 31/32].
dc.description.abstract	Peer Reviewed

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