Improved MIMO precoding for decentralized receivers resembling concepts from lattice reduction

Author

Fischer, Robert F H ; Windpassinger, Christoph A.

Author_Institution

Lehrstuhl fur Informationsubertragung, Friedrich-Alexander Univ., Erlangen, Germany

Volume

4

fYear

2003

fDate

1-5 Dec. 2003

Firstpage

1852

Abstract

The paper presents an improved version of precoding, i.e., nonlinear pre-equalization, for situations with one central transmitter (e.g., base station) and a number of distributed receivers (e.g., mobile terminals). The new method is based on Tomlinson-Harashima precoding, applied to multiple-input-multiple-output (MIMO) channels, and inspired by the concept of lattice-reduction-aided detection in MIMO communication systems. We show that, by using the proposed technique, a considerable degree of diversity can be gained over linear pre-equalization, as well as conventional precoding.

Keywords

MIMO systems; broadcast channels; diversity reception; encoding; equalisers; radio receivers; radio transmitters; signal detection; MIMO precoding; Tomlinson-Harashima precoding; base station; central transmitter; decentralized receivers; distributed receivers; diversity reception; lattice-reduction-aided detection; mobile terminals; multiple-input-multiple-output channels; nonlinear pre-equalization; Base stations; Broadcasting; Decision feedback equalizers; Downlink; Filtering; Lattices; MIMO; Matched filters; Signal processing; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE

Print_ISBN

0-7803-7974-8

Type

conf

DOI

10.1109/GLOCOM.2003.1258559

Filename

1258559