Keyholes, correlations and capacities of multi-element transmit and receive antennas

Author

Chizhik, Dmitry ; Foschini, Gerard J. ; Gans, Michael J. ; Valenzuela, Reinaldo A.

Author_Institution

Lucent Technol. Bell Labs, Holmdel, NJ, USA

Volume

1

fYear

2001

fDate

2001

Firstpage

284

Abstract

Multi-element system capacities are usually thought of as being limited only by correlations between elements. We show that degenerate channel phenomena, called "keyholes" may arise under realistic assumptions which have zero correlation between the entries of the channel matrix H and yet only a single degree of freedom. Canonical physical examples of keyholes are presented. For indoor environments, it is shown that the number of communication modes in a hallway may not exceed the number of waveguide modes

Keywords

antenna arrays; decorrelation; electromagnetic wave scattering; indoor radio; radiowave propagation; receiving antennas; signal processing; singular value decomposition; telecommunication channels; transmitting antennas; channel matrix; communication modes; degenerate channel phenomena; element correlations; indoor environments; keyholes; multi-element antennas; receive antennas; scattering environments; signal processing; singular value decomposition; transmit antennas; waveguide modes; Gallium nitride; Indoor environments; Matrix decomposition; Narrowband; Receiving antennas; Scattering; Singular value decomposition; Transmission line matrix methods; Transmitters; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2001. VTC 2001 Spring. IEEE VTS 53rd

Conference_Location

Rhodes

ISSN

1090-3038

Print_ISBN

0-7803-6728-6

Type

conf

DOI

10.1109/VETECS.2001.944848

Filename

944848