Title :
On the relation between V-BLAST and the GDFE
Author :
Ginis, George ; Cioffi, John M.
Author_Institution :
Dept. of Electr. Eng., Stanford Univ., CA, USA
Abstract :
This letter shows that the receiver processing of the Vertical Bell Labs Layered Space-Time (V-BLAST) architecture may he viewed as a generalized decision feedback equalizer (GDFE) as applied to a multiple-input-multiple-output (MIMO) channel. It is proven that, depending on the criterion chosen to reduce the interference, the receiver operations of the V-BLAST system are fundamentally equivalent to either a zero-forcing (ZF) or a minimum-mean-square-error (MMSE) GDFE.
Keywords :
MIMO systems; decision feedback equalisers; interference suppression; telecommunication channels; GDFE; MIMO channel; MMSE; V-BLAST architecture; Vertical Bell Labs Layered Space-Time architecture; generalized DFE; generalized decision feedback equalizer; minimum-mean-square-error criterion; multiple-input-multiple-output channel; receiver processing; zero-forcing criterion; Decision feedback equalizers; Helium; Information theory; Interference suppression; MIMO; Narrowband; Scattering; Signal to noise ratio; Telecommunications; Upper bound;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/4234.951378
