DocumentCode
2830145
Title
Toeplitz method for blind equalization in MIMO OFDM systems
Author
Abrudan, Traian ; Hjorungnes, A. ; Koivunen, Visa
Author_Institution
Signal Process Lab., Helsinki Univ. of Technol., Espoo, Finland
fYear
2004
fDate
2004
Firstpage
212
Lastpage
215
Abstract
In this paper we address the problem of blind recovery of multiple OFDM streams in a multiple-input multiple-output (MIMO) system. We propose an equalization algorithm which is based on a combined criterion that cancels both inter-symbol interference (ISI), and co-channel interference (CCI). ISI is minimized by using a modified vector constant modulus (VCM) criterion, while CCI is minimized by a decorrelation criterion.
Keywords
MIMO systems; OFDM modulation; Toeplitz matrices; blind equalisers; cochannel interference; intersymbol interference; vectors; CCI; ISI; MIMO system; OFDM; Toeplitz method; VCM; blind equalization; co-channel interference; inter-symbol interference; modified vector constant modulus; multiple-input multiple-output; orthogonal frequency division multiplexing; Autocorrelation; Blind equalizers; Cost function; Decorrelation; MIMO; OFDM; Periodic structures; Radiofrequency interference; Signal processing algorithms; Training data;
fLanguage
English
Publisher
ieee
Conference_Titel
Communications, 2004 International Zurich Seminar on
Print_ISBN
0-7803-8329-X
Type
conf
DOI
10.1109/IZS.2004.1287427
Filename
1287427
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