On the approximation of MIMO capacity

Author

Dohler, Mischa ; Aghvami, Hamid

Author_Institution

Centre for Telecommun. Res., King´´s Coll. London, UK

Volume

4

Issue

1

fYear

2005

Firstpage

30

Lastpage

34

Abstract

Information theoretical optimization problems related to the resource allocation of wireless cellular and ad hoc networks are not solvable in closed form due to the nonlinear logarithmic representation of the Shannon capacity. This paper introduces functional approximations to the MIMO capacity over flat Rayleigh fading channels, which allow for analytical solutions to network resource optimization problems. The precision of the suggested approximations is assessed and is shown to provide a very close match to the exact capacity expression.

Keywords

MIMO systems; Rayleigh channels; ad hoc networks; cellular radio; channel capacity; function approximation; optimisation; MIMO capacity approximation; Rayleigh fading channel; Shannon capacity; ad hoc network; information theoretical optimization; multiple-input multiple-output; network resource optimization; nonlinear logarithmic representation; resource allocation; wireless cellular network; Access protocols; Channel capacity; Communication networks; Decoding; MIMO; Media Access Protocol; Nonlinear equations; Optimization methods; Resource management; Throughput;

fLanguage

English

Journal_Title

Wireless Communications, IEEE Transactions on

Publisher

ieee

ISSN

1536-1276

Type

jour

DOI

10.1109/TWC.2004.840250

Filename

1381421