The lattice predictive decision-feedback equaliser in a multipath environment

Author

Tonsing, J.H. ; Linde, L.P.

Author_Institution

Dept. of Electron. & Comput. Eng., Pretoria Univ., South Africa

fYear

1991

fDate

8/30/1991 12:00:00 AM

Firstpage

160

Lastpage

165

Abstract

The predictive decision feedback equaliser (PDFE) has been suggested as a possible alternative to the so-called conventional DFE. In this paper the PDFE is compared with the double-channel version of the conventional DFE in a multipath environment. The structure is discussed and differences from the conventional DFE structure are highlighted. Computational complexities are also compared. A fractional-T version of the lattice PDFE algorithm is given. The systems are compared using computer simulation. The PDFE has a definite disadvantage which can be overcome only by a fractional-T PDFE combined with error-correction coding

Keywords

computational complexity; digital radio systems; equalisers; feedback; filtering and prediction theory; intersymbol interference; DFE; ISI; algorithm; complexities; computer simulation; fractional-T; lattice predictive decision-feedback equaliser; multipath; structure; Communication channels; Computational complexity; Computer errors; Computer simulation; Decision feedback equalizers; Error correction; Filters; Forward error correction; Intersymbol interference; Lattices;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Signal Processing, 1991. COMSIG 1991 Proceedings., South African Symposium on

Conference_Location

Pretoria

Print_ISBN

0-7803-0040-8

Type

conf

DOI

10.1109/COMSIG.1991.278242

Filename

278242