Title :
Decorrelation of a Closely Spaced Antenna Array and Its Influence on MIMO Channel Capacity
Author :
Dumanli, Sema ; Railton, Chris J. ; Paul, D.L.
Author_Institution :
Centre for Commun. Res., Univ. of Bristol, Bristol
Abstract :
The effect of correlation between four closely spaced slot antennas on the capacity of a MIMO system is demonstrated for several different channel scenarios and a practical decorrelation network consisting of a rat-race hybrid is proposed. The effectiveness of this network is independent of the element type or spacing. The properties of the array and decorrelation network are investigated by means of a finite difference time domain (FDTD) analysis. The decorrelation network is shown to reduce the envelope correlation and give improved capacity when the elements are close.
Keywords :
MIMO communication; channel capacity; correlation methods; finite difference time-domain analysis; slot antenna arrays; wireless channels; FDTD analysis; MIMO channel capacity; close spaced slot antenna array decorrelation; finite difference time domain analysis; rat-race hybrid; antenna correlation; channel capacity; decorrelation; multiple-input-multiple-output (MIMO) system; slot antenna;
Conference_Titel :
Antennas and Propagation, 2007. EuCAP 2007. The Second European Conference on
Conference_Location :
Edinburgh
Print_ISBN :
978-0-86341-842-6
