Improved Interference Alignment Precoding for the MIMO X Channel

Author

Agustin, Adrian ; Vidal, Josep

Author_Institution

Dept. of Signal Theor. & Commun., UPC (Univ. Politec. de Catalunya), Barcelona, Spain

fYear

2011

fDate

5-9 June 2011

Firstpage

1

Lastpage

5

Abstract

We derive a linear transmit precoding scheme based on interference alignment at the transmitters and zero-forcing at the receivers, for the MIMO X channel based on the Generalized Singular Value Decomposition (GSVD) that is able to attain the outer bound on the degrees of freedom (DoF) region for any antenna configuration, except when all terminals have one antenna. Additionally, the proposed scheme is able to enhance the transmission rate in terms of high SNR offset.

Keywords

MIMO communication; antenna arrays; interference suppression; precoding; radiofrequency interference; singular value decomposition; wireless channels; DoF region; GSVD; MIMO X channel; SNR offset; antenna configuration; degrees of freedom region; generalized singular value decomposition; interference alignment precoding; linear transmit precoding scheme; radio receiver; radio transmitter; Antennas; IEEE Communications Society; Information theory; Interference; MIMO; Signal to noise ratio; Singular value decomposition;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications (ICC), 2011 IEEE International Conference on

Conference_Location

Kyoto

ISSN

1550-3607

Print_ISBN

978-1-61284-232-5

Electronic_ISBN

1550-3607

Type

conf

DOI

10.1109/icc.2011.5962671

Filename

5962671