Experimental evaluation of Interference Alignment under imperfect channel state information

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URI: https://hdl.handle.net/10902/27746
ISSN: 2076-1465
ISSN: 2219-5491
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Autoría
García Naya, José Antonio; Castedo Ribas, Luis; González Fernández, ÓscarAutoridad Unican; Ramírez García, David; Santamaría Caballero, Luis IgnacioAutoridad Unican
Fecha
2011
Derechos
© EURASIP. First published in the Proceedings of the 19th European Signal Processing Conference (EUSIPCO-2011) in 2011, published by EURASIP. IEEE is granted the nonexclusive, irrevocable, royalty-free worldwide rights to publish, sell and distribute the copyrighted work in any format or media without restriction.
Publicado en
19th European Signal Processing Conference (EUSIPCO), Barcelona, 2011, 1085-1089
Editorial
Institute of Electrical and Electronics Engineers, Inc.
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Resumen/Abstract
Interference Alignment (IA) has been revealed as one of the most attractive transmission techniques for the K-user interference channel. In this work, we employ a multiuser Multiple-Input Multiple-Output (MIMO) testbed to analyze, in realistic indoor scenarios, the impact of channel state information errors on the sum-rate performance of IA. We restrict our study to a 3-user interference network in which each user transmits a single data stream using two transmit and two receive antennas. For this MIMO interference network, only two different IA solutions exist. We also evaluate the performance gain obtained in practice by using the IA solution that maximizes the sum-rate.
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