Title :
STBC-DFE Systems with Different Factorization Algorithms
Author :
Feng Zhang ; Lin Wang ; Sesay, Abu
Author_Institution :
Dept. of Electr. & Comput. Eng., Calgary Univ., Alta.
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;
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
DOI :
10.1109/CCECE.2006.277418
