Title :
Spatial correlation of circular antenna arrays in Nakagami fading channels
Author :
Li Xin ; Nie Zai-ping
Author_Institution :
Coll. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, China
Abstract :
The paper presents general analytical solutions of spatial correlation. for circular antenna arrays (CAA) in scattering wireless channels with Nakagami fading. The expressions include the directionality of each antenna element and consider both unequal-power and clustering scattering in MIMO (multiple-input multiple-output) wireless channels. The spatial correlation for CAA receiving signals with a Laplacian power azimuth spectrum (PAS) is investigated and the effects of different PASs on spatial correlation are compared. The simulation results validate the analytical results, and show that the formulae are efficient in focusing three factors, namely antenna configuration, angular spread and central incident angle, on controlling spatial correlation together.
Keywords :
MIMO systems; antenna arrays; array signal processing; correlation methods; electromagnetic wave scattering; fading channels; Laplacian power azimuth spectrum; MIMO wireless channels; Nakagami fading channels; angular spread; antenna configuration; central incident angle; circular antenna arrays; mobile wireless systems; multiple-input multiple-output wireless channels; scattering wireless channels; spatial correlation; Analytical models; Antenna arrays; Azimuth; Centralized control; Computer aided analysis; Directive antennas; Fading; Laplace equations; MIMO; Scattering;
Conference_Titel :
Communications, Circuits and Systems, 2004. ICCCAS 2004. 2004 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
0-7803-8647-7
DOI :
10.1109/ICCCAS.2004.1346003
