Implicit MIMO Channel Estimation Without DC-Offset Based on ZCZ Training Sequences

Author

Yuan, Weina ; Fan, Pingzhi

Author_Institution

Inst. of Mobile Commun., Southwest Jiaotong Univ., Chengdu

Volume

13

Issue

9

fYear

2006

Firstpage

521

Lastpage

524

Abstract

In this letter, an implicit direct current (dc) free multiple-input multiple-output (MIMO) channel estimation scheme is proposed by employing a set of zero correlation zone (ZCZ) training sequences. The new implicit MIMO channel estimation scheme includes, as a special case, the conventional implicit single-input single-output (SISO) channel estimation scheme, which is also considered and analyzed. For implicit SISO channel estimation, by choosing properly a set of ZCZ sequences with balanced property, the harmful dc-offset can be completely removed, thus exhibiting significantly better estimation performance and resulting in simpler implementation when compared with the conventional implicit training schemes without dc-offset elimination and with dc-offset elimination based on perfect sequences, respectively

Keywords

MIMO systems; channel estimation; sequences; MIMO channel estimation; SISO; ZCZ training sequence; multiple-input multiple-output system; single-input single-output system; zero correlation zone; Bandwidth; Channel estimation; Degradation; Equations; Error analysis; Estimation error; MIMO; Mobile communication; Polynomials; Statistics; Channel estimation; implicit training; multiple-input multiple-output (MIMO); single-input single-output (SISO); zero correlation zone (ZCZ) sequence;

fLanguage

English

Journal_Title

Signal Processing Letters, IEEE

Publisher

ieee

ISSN

1070-9908

Type

jour

DOI

10.1109/LSP.2006.874435

Filename

1673410