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Channel capacity upper bound of MIMO systems in the presence of spatially correlated noise

Channel capacity upper bound of MIMO systems in the presence of spatially correlated noise

Krusevac, Snezana M., Rapajic, Predrag and Kennedy, Rodney A. (2005) Channel capacity upper bound of MIMO systems in the presence of spatially correlated noise. Proceedings Eighth International Symposium on Communication Theory and Applications - ISCTA ’05. ISCTA '05, Ambleside, Lake District, UK, pp. 298-303.

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Abstract

In this paper, we derive an upper bound on the channel capacity of MIMO systems in the presence of correlated noise. We isolate the noise correlation factor in the channel capacity formula, enabling the identification of the noise correlation contribution on the MIMO channel capacity. We analyze the thermal noise correlation due to the mutual coupling effect. Then, we calculate the thermal noise correlation matrix in the multi-antenna system with closely-spaced antennae by applying the Nyquist’s thermal noise theorem. Simulation results shows that ergodic and outage MIMO channel capacity are underestimated if the noise correlation due to the mutual coupling effects is not accounted for.

Additionally, it is demonstrated that the upper bound can be used for a first estimation of MIMO channel capacity in the presence of correlated noise, reducing the calculation complexity.

Item Type: Book Section
Additional Information: 8th ISCTA 17– 22 July 2005, Ambleside, Lake District, UK
Uncontrolled Keywords: MIMO, correlated noise, information capacity
Pre-2014 Departments: School of Engineering
School of Engineering > Department of Computer & Communications Engineering
Last Modified: 14 Oct 2016 09:15
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/5718

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