Theory of MIMO biorthogonal partners and their application in channel equalization

Author

Vrcelj, Bojan ; Vaidyanathan, P.P.

Author_Institution

Dept. of Electr. Eng., California Inst. of Technol., Pasadena, CA, USA

Volume

2

fYear

2001

fDate

2001

Firstpage

377

Abstract

Channel equalization is an important step in most applications of digital communications. In this paper we consider the equalization of multiple input multiple output (MIMO) channels. To that end we derive the theory of MIMO biorthogonal partners, a concept that has already been introduced (only in the scalar case) by the authors. We develop conditions for the existence of an FIR MIMO biorthogonal partners and describe their application in the MIMO channel equalization. We also show that it is possible to exploit the non-uniqueness of FIR MIMO biorthogonal partners in order to design flexible fractionally spaced MIMO equalizers that will be more robust to the channel noise

Keywords

MIMO systems; digital communication; equalisers; telecommunication channels; transient response; FIR MIMO biorthogonal partners; channel equalization; channel noise; digital communications; fractionally spaced MIMO equalizers; multiple input multiple output; Digital communication; Digital filters; Equalizers; Finite impulse response filter; MIMO; Matrix decomposition; Mobile antennas; Noise robustness; Symmetric matrices; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2001. ICC 2001. IEEE International Conference on

Conference_Location

Helsinki

Print_ISBN

0-7803-7097-1

Type

conf

DOI

10.1109/ICC.2001.936966

Filename

936966