@conference{10902/9443,
year = {2014},
url = {http://hdl.handle.net/10902/9443},
abstract = {This paper derives the interference-temperature (IT) limit for a multi-antenna primary user (PU) with a rate constraint. While in the case of a single-antenna PU there is a one-to-one mapping between IT and achievable rate, this correspondence does not hold anymore when a multiple-input multiple-output (MIMO) system is considered. In such cases, the spatial distribution of the interference must be taken into account, since it strongly affects the PU performance. To this end, we derive a closed-form expression for the maximum IT that can be tolerated by identifying the worst-case interference covariance matrix, which results in a multilevel waterfilling problem.},
organization = {C. Lameiro and I. Santamaría have received funding from the Spanish Government (MICINN) under projects
CONSOLIDER-INGENIO 2010 CSD2008-00010 (COMONSENS), TEC2013-47141-C4-3-R (RACHEL) and FPU Grant
AP2010-2189. W. Utschick receives financial support from the Deutsche Forschungsgemeinschaft (DFG) under the grant
Ut36/15-1.},
publisher = {IEEE},
publisher = {48th Asilomar Conference on Signals, Systems and Computers, Pacific Grove, California, 2014, 1093-1097},
title = {Interference-temperature limit for cognitive radio networks with MIMO primary users},
author = {Lameiro Gutiérrez, Christian and Utschick, Wolfgang and Santamaría Caballero, Luis Ignacio},
}