Reduced-complexity sequence estimation for trellis coded modulationwith outer Reed-Solomon codes over ISI channels
Al-Sanie, A.M.; Alshebeili, S.A.
Communications, Computers and signal Processing, 2001. PACRIM. 2001 IEEE Pacific Rim Conference on
Volume 1, Issue , 2001 Page(s):224 - 227 vol.1
Digital Object Identifier 10.1109/PACRIM.2001.953563
Summary:The combined linear-Viterbi equalizer (CLVE) is a class of
receivers employing a linear filter before the Viterbi algorithm (VA) in
order to shape the original channel impulse response (CIR) to some
shorter desired impulse response (DIR) which allows a lower complexity
VA. The CLVE technique is originally proposed to reduce the complexity
of VA that performs maximum likelihood sequence estimation (MLSE) to
uncoded transmission over intersymbol interference (ISI) channels. In
this paper, we adopt the CLVE technique to reduce the complexity of VA
that performs MLSE to trellis coded transmission over ISI channels.
Furthermore, reduced state sequence estimation for high rate
concatenated systems with bandwidth efficient trellis inner codes and
Reed-Solomon (RS) outer codes over ISI channels is investigated
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