DocumentCode :
1896731
Title :
An approximation of eigenvalue distribution in I.I.D MIMO channels under rayleigh fading
Author :
Taniguchi, Takafumi ; Sha, Shaoshu ; Karasawa
Author_Institution :
Dept. of Electron. Eng., Electro-Commun. Univ., Tokyo
fYear :
2005
fDate :
17-20 July 2005
Firstpage :
1072
Lastpage :
1077
Abstract :
In multiple input multiple output (MIMO) communication systems, eigenvalues of channel correlation matrices play an essential role for the performance analysis, and particularly, the investigation about their behavior under time-variant environment ruled by a certain statistics is an important problem. This paper presents an approximation formula of the marginal distribution of all the eigenvalues of MIMO correlation matrices under i.i.d. (independent and identically distributed) Rayleigh fading environment. We will show that the theory of SIMO space diversity using maximal ratio combining (MRC) is applicable to the approximation of statistical distributions of all eigenvalues in MIMO systems with same number of diversity branches. The derived approximation has a monomial form suitable for the calculation of various performance indeces used in MIMO systems. Through computer simulations, the effectiveness of the proposed method is demonstrated
Keywords :
MIMO systems; Rayleigh channels; diversity reception; eigenvalues and eigenfunctions; matrix algebra; statistical distributions; MIMO channels; Rayleigh fading; SIMO space diversity; channel correlation matrices; eigenvalue distribution; independent and identically distributed fading; maximal ratio combining; multiple input multiple output; statistical distributions; Eigenvalues and eigenfunctions; MIMO; Rayleigh channels;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Statistical Signal Processing, 2005 IEEE/SP 13th Workshop on
Conference_Location :
Novosibirsk
Print_ISBN :
0-7803-9403-8
Type :
conf
DOI :
10.1109/SSP.2005.1628754
Filename :
1628754
Link To Document :
بازگشت