Synthesis of minimal cost nonlinear feedback shift registers

  • Authors:
  • D. Linardatos;N. Kalouptsidis

  • Affiliations:
  • Department of Informatics and Communications, Division of Communications and Signal Processing, University of Athens, Panepistimiopolis, Ilisia, Athens 15784, Greece;Department of Informatics and Communications, Division of Communications and Signal Processing, University of Athens, Panepistimiopolis, Ilisia, Athens 15784, Greece

  • Venue:
  • Signal Processing
  • Year:
  • 2002

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Abstract

This paper is concerned with the determination of the "minimal" nonlinear feedback shift register (NLFSR) that generates a given sequence. A total ordering between structural vectors that takes into account the implementation cost is specified. Minimality is defined with respect to this ordering. A block as well as a sequential algorithm are developed that combine a linear dependence test implemented by an extension of the Fundamental Iterative Algorithm (EFIA) with a minimality procedure that traces the totally ordered structural vectors.