Turbo equalization and an M-BCJR algorithm for strongly narrowband intersymbol interference

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.

• Author: John B Anderson; Adnan Prlja
• Department/s: Department of Electrical and Information Technology; ELLIIT: the Linköping-Lund initiative on IT and mobile communication
• Publishing year: 2010
• Language: English
• Pages: 261-266
• Publication/Series: [Host publication title missing]
• Full text: - 110 kB; Download statistics
• Links: http://dx.doi.org/10.1109/ISITA.2010.5648949
• Document type: Conference paper
• Publisher: IEEE - Institute of Electrical and Electronics Engineers Inc.
• Topic: Electrical Engineering, Electronic Engineering, Information Engineering
• Keywords: 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
• Project: EIT_HSWC:Coding Coding, modulation, security and their implementation
• Research group: Informations- och kommunikationsteori; Telecommunication Theory
• ISBN/ISSN/Other: ISBN: 978-1-4244-6014-4