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Performance study of RAM-based decision feedback equalizers with application to nonlinear satellite channels

Ryan, William E. (author)
Leblanc, James (author)
Kennedy, Rodney A. (author)
Piscataway, NJ : IEEE Communications Society, 1999
1999
English.
In: Signal Processing and its Applications. - Piscataway, NJ : IEEE Communications Society. - 1864354518
  • Conference paper (peer-reviewed)
Abstract Subject headings
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  • The performance of nonlinear decision feedback equalizer implementations based on the use a random access memory (RAM) look-up table are considered. RAM look-up tables admit the modeling, without approximation, of the nonlinear intersymbol interference of nonlinear channels with finite memory. Three equalizers are considered; the RAM-DFE; RAM-canceler; and recently developed pre-cursor enhanced RAM-DFE canceler (PERC). In contrast to the classical “feedforward” Volterra equalizers, these equalizers have the advantage that the nonlinear processing element is out of the path of the noise, thus avoiding noise amplification. Results are presented for 16-QAM which compare and demonstrate the effectiveness of these equalizers, particularly the PERC, on the nonlinear satellite channel

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)

Keyword

Signalbehandling
Signal Processing

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ref (subject category)
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Ryan, William E.
Leblanc, James
Kennedy, Rodney ...
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ENGINEERING AND TECHNOLOGY
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Luleå University of Technology

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