Channel capacity of multi-antenna communication systems with closely spaced antenna elements

Author

Krusevac, Snezana ; Rapajic, Predrag ; Kennedy, Rodney A.

Author_Institution

Dept. of Electr. Eng., Univ. of NSW, Sydney

Volume

4

fYear

2005

fDate

11-14 Sept. 2005

Firstpage

2366

Abstract

In this paper we analyze the causes and effects of mutual coupling on MIMO channel capacity. Mutual coupling not only affects the signal through correlation but also the thermal noise-a critical factor omitted from previous work. We study a two-antenna array by applying the Nyquist´s thermal noise theorem. Simulation results shows that mean MIMO channel capacity is underestimated if the noise correlation due to mutual coupling effect is not accounted for. We present results for both cases when the transmitter does and does not know the channel realizations

Keywords

MIMO systems; antenna arrays; correlation theory; electromagnetic coupling; thermal noise; wireless channels; MIMO channel capacity; Nyquist thermal noise theorem; antenna array; correlation theory; multiantenna communication system; multiple input multiple output; mutual coupling; spaced antenna element; Australia; Channel capacity; Coupling circuits; Electromagnetic coupling; Gaussian noise; MIMO; Mutual coupling; Receiving antennas; Transmitters; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2005. PIMRC 2005. IEEE 16th International Symposium on

Conference_Location

Berlin

Print_ISBN

9.7838007291e+012

Type

conf

DOI

10.1109/PIMRC.2005.1651866

Filename

1651866