Turbo equalization and an M-BCJR algorithm for strongly narrowband intersymbol interference
Författare
Summary, in English
An M-BCJR algorithm is proposed and tested over
an AWGN channel with moderate to very intense intersymbol
interference (ISI). Two M-BCJR applications are evaluated,
simple detection over the ISI channel and turbo equalization.
The signaling is binary faster than Nyquist linear modulation.
The ISI models tested correspond to transmission of increasingly
many bits/Hz-s with a fixed signal spectra; the paper studies
the range 2–8 bits/Hz-s, which implies ISI models as long as 32
taps. As a simple detector, the M-BCJR achieves the ML error
rate with small computation, even when the Viterbi algorithm is
completely impractical. In turbo equalization, the M-BCJR needs
somewhat more computation and a more careful design because
it must produce accurate likelihoods.
an AWGN channel with moderate to very intense intersymbol
interference (ISI). Two M-BCJR applications are evaluated,
simple detection over the ISI channel and turbo equalization.
The signaling is binary faster than Nyquist linear modulation.
The ISI models tested correspond to transmission of increasingly
many bits/Hz-s with a fixed signal spectra; the paper studies
the range 2–8 bits/Hz-s, which implies ISI models as long as 32
taps. As a simple detector, the M-BCJR achieves the ML error
rate with small computation, even when the Viterbi algorithm is
completely impractical. In turbo equalization, the M-BCJR needs
somewhat more computation and a more careful design because
it must produce accurate likelihoods.
Avdelning/ar
Publiceringsår
2010
Språk
Engelska
Sidor
261-266
Publikation/Tidskrift/Serie
[Host publication title missing]
Fulltext
- Available as PDF - 110 kB
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Dokumenttyp
Konferensbidrag
Förlag
IEEE - Institute of Electrical and Electronics Engineers Inc.
Ämne
- Electrical Engineering, Electronic Engineering, Information Engineering
Nyckelord
- turbo coding
- iterative decoding
- equalization
- Digital communication
Conference name
International Symposium on Information Theory and Its Applications (ISITA), 2010
Conference date
2010-10-17 - 2010-10-20
Conference place
Taichung, Taiwan
Status
Published
Projekt
- EIT_HSWC:Coding Coding, modulation, security and their implementation
Forskningsgrupp
- Informations- och kommunikationsteori
- Telecommunication Theory
ISBN/ISSN/Övrigt
- ISBN: 978-1-4244-6014-4