Journal of Systems Engineering and Electronics 2010, 21(2) 197-203 DOI:   10.3969/j.issn.1004-4132.2010.02.005  ISSN: 1004-4132 CN: 11-3018/N

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Keywords
multiple-input multiple-output(MIMO)
soft-output de-
tection
lattice-reduction
stack algorithm.
Authors
PubMed

Soft-output stack algorithm with lattice-reduction for MIMO detection

Yuan Yang1,*,Hailin Zhang2,and Junfeng Hu2

1.Datang Linktech Infosystem Co,Ltd,Beijing 100083,P.R.China;
2.State Key Laboratory of ISN,Xidian University,Xi’an 710071,P.R.China

Abstract��

A computationally efficient soft-output detector with
lattice-reduction(LR)for the multiple-input multiple-output(MIMO)
systems is proposed.In the proposed scheme,the sorted QR de-
composition is applied on the lattice-reduced equivalent channel
to obtain the tree structure.With the aid of the boundary control,
the stack algorithm searches a small part of the whole search
tree to generate a handful of candidate lists in the reduced lattice.
The proposed soft-output algorithm achieves near-optimal perfor-
mance in a coded MIMO system and the associated computational
complexity is substantially lower than that of previously proposed
methods.

Keywords�� multiple-input multiple-output(MIMO)   soft-output de-
tection
   lattice-reduction   stack algorithm.  
Received  Revised  Online:  
DOI: 10.3969/j.issn.1004-4132.2010.02.005
Fund:
Corresponding Authors: Yuan Yang
Email:
About author:

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