DocumentCode
937615
Title
Modified LMMSE turbo equalization
Author
Jiang, Sen ; Ping, Li ; Sun, Hong ; Leung, Chi Sing
Author_Institution
Sch. of Electron. Inf., Wuhan Univ., China
Volume
8
Issue
3
fYear
2004
fDate
3/1/2004 12:00:00 AM
Firstpage
174
Lastpage
176
Abstract
This letter presents a modified linear minimum mean square error (LMMSE) turbo equalization scheme that uses an augmented real matrix representation for quadrature modulation systems. In the proposed scheme, the estimates of the two quadrature components of the transmitted symbol have both their individual variances and their covariance considered. Hence, the new scheme is able to achieve a significant performance improvement while retaining a complexity similar to that of the existing LMMSE turbo equalization scheme.
Keywords
equalisers; intersymbol interference; iterative methods; least mean squares methods; modulation; turbo codes; ISI; LMMSE; augmented real matrix representation; covariance; intersymbol interference; iterative methods; modified linear minimum mean square error turbo equalization scheme; quadrature modulation systems; transmitted symbol; variances; Covariance matrix; Degradation; Digital communication; Equalizers; Intersymbol interference; Iterative decoding; Iterative methods; Mean square error methods; Sun; Turbo codes;
fLanguage
English
Journal_Title
Communications Letters, IEEE
Publisher
ieee
ISSN
1089-7798
Type
jour
DOI
10.1109/LCOMM.2004.823434
Filename
1278312
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