DocumentCode :
1365555
Title :
MIMO Networks: The Effects of Interference
Author :
Chiani, Marco ; Win, Moe Z. ; Shin, Hyundong
Author_Institution :
WiLab/DEIS, Univ. of Bologna, Bologna, Italy
Volume :
56
Issue :
1
fYear :
2010
Firstpage :
336
Lastpage :
349
Abstract :
Multiple-input multiple-output (MIMO) systems are being considered as one of the key enabling technologies for future wireless networks. However, the decrease in capacity due to the presence of interferers in MIMO networks is not well understood. In this paper, we develop an analytical framework to characterize the capacity of MIMO communication systems in the presence of multiple MIMO co-channel interferers and noise. We consider the situation in which transmitters have no channel state information, and all links undergo Rayleigh fading. We first generalize the determinant representation of hypergeometric functions with matrix arguments to the case when the argument matrices have eigenvalues of arbitrary multiplicity. This enables the derivation of the distribution of the eigenvalues of Gaussian quadratic forms and Wishart matrices with arbitrary correlation, with application to both single-user and multiuser MIMO systems. In particular, we derive the ergodic mutual information for MIMO systems in the presence of multiple MIMO interferers. Our analysis is valid for any number of interferers, each with arbitrary number of antennas having possibly unequal power levels. This framework, therefore, accommodates the study of distributed MIMO systems and accounts for different spatial positions of the MIMO interferers.
Keywords :
MIMO communication; cochannel interference; eigenvalues and eigenfunctions; matrix algebra; Gaussian quadratic form; MIMO cochannel interference; MIMO communication systems; MIMO networks; Rayleigh fading; Wishart matrices; distributed MIMO systems; eigenvalues; ergodic mutual information; hypergeometric function; multiple-input multiple-output systems; wireless networks; Eigenvalues and eigenfunctions; Fading; Interchannel interference; Linear matrix inequalities; MIMO; Mutual information; Radio transmitters; Receiving antennas; Transmitting antennas; Wireless networks; Eigenvalues distribution; Gaussian quadratic forms; Wishart matrices; hypergeometric functions of matrix arguments; interference; multiple-input multiple-output (MIMO);
fLanguage :
English
Journal_Title :
Information Theory, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9448
Type :
jour
DOI :
10.1109/TIT.2009.2034810
Filename :
5361482
Link To Document :
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