DocumentCode
829926
Title
On the linear complexity of nonlinearly filtered PN-sequences
Author
Kolokotronis, Nicholas ; Kalouptsidis, Nicholas
Author_Institution
Dept. of Informatics & Telecommun., Nat. & Kapodistrian Univ. of Athens, Greece
Volume
49
Issue
11
fYear
2003
Firstpage
3047
Lastpage
3059
Abstract
Binary sequences of period 2n-1 generated by a linear feedback shift register (LFSR) whose stages are filtered by a nonlinear function, f, are studied. New iterative formulas are derived for the calculation of the linear complexity of the output sequences. It is shown that these tools provide an efficient mechanism for controlling the linear complexity of the nonlinearly filtered maximal-length sequences.
Keywords
binary sequences; computational complexity; feedback; iterative methods; nonlinear filters; polynomials; pseudonoise codes; shift registers; binary sequences; iterative formulas; linear complexity; linear feedback shift register; nonlinear filter function; nonlinear function; nonlinearly filtered PN-sequences; primitive characteristic polynomial; pseudonoise statistics; Binary sequences; Boolean functions; Cryptography; Error correction; Galois fields; Linear feedback shift registers; Nonlinear filters; Polynomials; Spread spectrum communication; Statistics;
fLanguage
English
Journal_Title
Information Theory, IEEE Transactions on
Publisher
ieee
ISSN
0018-9448
Type
jour
DOI
10.1109/TIT.2003.818400
Filename
1246031
Link To Document