DocumentCode
2174007
Title
Adaptive decision feedback turbo equalization and multiuser detection
Author
Trajkovic, Vladimir D. ; Rapajic, Predrag B.
Author_Institution
Univ. of New South Wales, Sydney, NSW, Australia
fYear
2004
fDate
30 Aug.-2 Sept. 2004
Firstpage
540
Lastpage
544
Abstract
The analysis of adaptive decision feedback turbo equalization is provided. The turbo detector is a reduced-complexity adaptive turbo equalizer where trellis-based channel equalization is replaced by the adaptive decision feedback equalizer (DFE). We show that for severe intersymbol interference (ISI) the turbo effect (waterfall region) starts at lower SNR relative to the detector applying conventional MMSE DFE coefficients assuming perfect feedback.
Keywords
adaptive equalisers; decision feedback equalisers; intersymbol interference; multiuser detection; spread spectrum communication; turbo codes; DFE; ISI; SNR; adaptive equalization; decision feedback equalization; multiuser detection; reduced-complexity equalizer; severe intersymbol interference; turbo equalization; waterfall region; AWGN; Adaptive equalizers; Bit error rate; Decision feedback equalizers; Detectors; Intersymbol interference; Maximum likelihood decoding; Maximum likelihood estimation; Multiuser detection; Turbo codes;
fLanguage
English
Publisher
ieee
Conference_Titel
Spread Spectrum Techniques and Applications, 2004 IEEE Eighth International Symposium on
Print_ISBN
0-7803-8408-3
Type
conf
DOI
10.1109/ISSSTA.2004.1371758
Filename
1371758
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