6 papers
Perfect linear complexity profile and Apwenian sequences
J. -P. Allouche, G. -N. Han, H. Niederreiter
Sequences with {\em perfect linear complexity profile} were defined more than thirty years ago in the study of measures of randomness for binary sequences. More recently {\em apwen…
On the expansion complexity of sequences over finite fields
Gómez-Pérez, László Mérai, Harald Niederreiter
In 2012, Diem introduced a new figure of merit for cryptographic sequences called expansion complexity. In this paper, we slightly modify this notion to obtain the so-called irredu…
Expansion complexity and linear complexity of sequences over finite fields
László Mérai, Harald Niederreiter, Arne Winterhof
The linear complexity is a measure for the unpredictability of a sequence over a finite field and thus for its suitability in cryptography. In 2012, Diem introduced a new figure of…
Mixed orthogonal arrays, -nets, and -sequences
Peter Kritzer, Harald Niederreiter
We study the classes of -nets and -sequences, which are generalizations of -nets and -sequences, respectively. We show equivalence r…
A construction of (t,s)-sequences with finite-row generating matrices using global function fields
Roswitha Hofer, Harald Niederreiter
For any prime power and any dimension , we present a construction of -sequences in base with finite-row generating matrices such that, for fixed , the qu…
Improved asymptotic bounds for codes using distinguished divisors of global function fields
Harald Niederreiter, Ferruh Özbudak
For a prime power , let be the standard function in the asymptotic theory of codes, that is, is the largest asymptotic information rate that can be achieved for a…