STBC-DFE Systems with Different Factorization Algorithms

Author

Feng Zhang ; Lin Wang ; Sesay, Abu

Author_Institution

Dept. of Electr. & Comput. Eng., Calgary Univ., Alta.

fYear

2006

fDate

38838

Firstpage

2299

Lastpage

2304

Abstract

A multiple-input-multiple-output (MIMO) system in which space-time block coded (STBC) signals are equalized by a decision feedback equalizer (DFE) is presented in this paper. Three factorization algorithms including band LU, band LDL and band Cholesky factorization are used to obtain the optimum feedback and feedforward filter matrices of the STBC-DFE systems. The complexities of these three methods are investigated in this paper. Their performances in the typical urban (TU) wireless channel are also compared. Band LDL factorization is proven to be the simplest algorithm of the proposed scheme

Keywords

MIMO communication; block codes; computational complexity; decision feedback equalisers; filtering theory; matrix decomposition; space-time codes; wireless channels; MIMO system; STBC-DFE systems; TU wireless channel; band Cholesky factorization algorithm; band LDL factorization algorithm; band LU factorization algorithm; computation complexity; decision feedback equalizer; feedforward filter matrices; multiple-input-multiple-output system; optimum feedback; space-time block coded signals; Fault currents; Intersymbol interference; Load management; Planing; Power system reliability; Power transformers; Risk analysis; Substations; Switchgear; Topology; Cholesky factorization; Decision Feedback Equalizer; LDL; LU;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 2006. CCECE '06. Canadian Conference on

Conference_Location

Ottawa, Ont.

Print_ISBN

1-4244-0038-4

Electronic_ISBN

1-4244-0038-4

Type

conf

DOI

10.1109/CCECE.2006.277418

Filename

4054846