Low-complexity equalizers for MIMO frequency selective channels

Author

Sellami, Noura ; Siala, Mohamed ; Fijalkow, Inbar

Author_Institution

ISECS, Sfax, Tunisia

fYear

2004

fDate

2004

Firstpage

175

Lastpage

178

Abstract

In this paper, we present two low-complexity equalizers for frequency selective multiple-input multiple-output (MIMO) channels: the MMSE-block decision feedback equalizer (MMSE-BDFE) and the prefiltered list-type MAP equalizer. We compare their complexities and performance. This comparison shows that the prefiltered list-type MAP equalizer is more complex but achieves better performance than the MMSE-BDFE. Moreover, simulation results show that the performance of these two low-complexity equalizers approach the performance of the MAP equalizer.

Keywords

MIMO systems; computational complexity; decision feedback equalisers; least mean squares methods; multimedia communication; MIMO frequency selective channels; MMSE-block decision feedback equalizer; low-complexity equalizers; maximum a posteriori probability equalizer; multimedia service; multiple-input multiple-output channels; prefiltered list-type MAP equalizer; Decision feedback equalizers; Frequency; Intersymbol interference; MIMO; Maximum likelihood estimation; Multiaccess communication; Rayleigh channels; Receiving antennas; Transmitting antennas; Wireless communication;

fLanguage

English

Publisher

ieee

Conference_Titel

Control, Communications and Signal Processing, 2004. First International Symposium on

Print_ISBN

0-7803-8379-6

Type

conf

DOI

10.1109/ISCCSP.2004.1296246

Filename

1296246