On the capacity of generalized-K fading MIMO channels
Journal article, 2010

This correspondence explores the ergodic capacity of multiple-input multiple-output (MIMO) systems operating in generalized-K fading conditions. Using some recent results on majorization theory, we derive an analytical capacity bound which is applicable for arbitrary values of the signal-to-noise ratio (SNR) and number of antenna elements. In addition, we deduce simple bound approximations in the high-SNR regime and demonstrate that the effects of small and large-scale fading are decoupled. A similar statistical analysis is carried out for MIMO channels under K-fading, which represents a special case of generalized- fading that can be tackled via the Wishart matrix theory. The implications of the model parameters on the bound performance are also investigated via Monte Carlo simulations.

Ergodic capacity

MIMO systems

generalized-K fading

majorization theory


Michail Matthaiou

Chalmers, Signals and Systems, Signalbehandling och medicinsk teknik, Signal Processing

N. D. Chatzidiamantis

Aristotle University of Thessaloniki

George K. Karagiannidis

Aristotle University of Thessaloniki

Josef A. Nossek

Technical University of Munich

IEEE Transactions on Signal Processing

1053-587X (ISSN)

Vol. 58 11 5939-5944 5510179

Areas of Advance

Information and Communication Technology

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering

Other Electrical Engineering, Electronic Engineering, Information Engineering



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