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Determining the linear equivalent of NLFFS by using cyclotomic cose | ||
| Journal of Basrah Researches (Sciences) | ||
| Article 1, Volume 32, Issue 2, 2006, Pages 53-58 PDF (0 K) | ||
| Author | ||
| Kadhim Hasen Kuban | ||
| Abstract | ||
| Any given periodic sequence can be generated by a family of linear feedback shift registers (LFSR ) . The member of this family with least number of stages is called the linear equivalent of the given periodic sequence. Nonlinear logic (multiplication ofachosen number of bits and modulo 2 addition of the resultant), when applied to the LFSR sequences gives an output sequence called the nonlinear feedforward sequence (NLFFS) with increased complexity . The problem of finding the complexity (linear equivalent) of NLFFS has been studied by using cyclotomic costs for the case when feedback is a primitive polynomial. | ||
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