MIMO capacity enhancement in spatially correlated channels using Taguchi method

Authors:
Abdelmadjid Recioui;Hamid Bentarzi
Affiliations:
Laboratory Signals & Systems, Department of Electrical Engineering and Electrical, Faculty of Engineering, University of Boumerdes, Algeria;Laboratory Signals & Systems, Department of Electrical Engineering and Electrical, Faculty of Engineering, University of Boumerdes, Algeria
Venue:
MAMECTIS'10 Proceedings of the 12th WSEAS international conference on Mathematical methods, computational techniques and intelligent systems
Year:
2010

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Abstract

Higher system capacities can be achieved if multiple antennas are used on both sides of the wireless link, thus creating a multiple-input-multiple-output (MIMO) system. In this work, the maximization of MIMO system capacity in Rayleigh fading, spatially correlated channels involving practical antenna arrays is challenged through inter-element spacing optimization. The system capacity is evaluated using a proposed formula that takes into account both antenna mutual coupling and signal correlation. Capacity values turn out to outperform the ones obtained considering the conventional antenna array geometries.