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Degrees of freedom of the rank-deficient MIMO X channel

Author
Agustin, A.; Vidal, J.
Type of activity
Presentation of work at congresses
Name of edition
IEEE Information Theory Workshop
Date of publication
2013
Presentation's date
2013-09-12
Book of congress proceedings
Proceedings of the ITW 2013
Project funding
Distributed computing, storage and radio resource allocation over cooperative femtocells
Repository
http://hdl.handle.net/2117/21679 Open in new window
URL
http://itw2013.tsc.uc3m.es/program#S1569475527 Open in new window
Abstract
The multiple-input multiple-output (MIMO) X channel with rank-deficient channels is considered. We characterize the total degrees of freedom (DoF) by defining an outer bound which is attained by the proposed precoding scheme. The total DoF are described in closed-form when all transmitters and receivers have M and N antennas, respectively. For an arbitrary number of antennas, the total DoF are obtained as solution of a linear programming problem. Results elucidate that, unlike point-to-point MIM...
Citation
Agustin, A.; Vidal, J. Degrees of freedom of the rank-deficient MIMO X channel. A: IEEE Information Theory Workshop. "Proceedings of the ITW 2013". Sevilla: 2013.
Keywords
Degrees of Freedom, MIMO, X-channel
Group of research
SPCOM - Signal Processing and Communications Group

Participants