Title
Asymptotically exact bounds on the size of high-order spectral-null codes
Abstract
The spectral-null code S(n, k) of kth order and length n is the union of n-tuples with ±1 components, having kth-order spectral-null at zero frequency. We determine the exact asymptotic in n behavior of the size of such codes. In particular, we prove that for n satisfying some divisibility conditions, log2|S(n, k)|=n-k 2/2log2n+ck+o(1), where ck is a constant depending only on k and o(1) tends to zero when n grows. This is an improvement on the earlier known bounds due to Roth, Siegel, and Vardy (see ibid., vol40, p.1826-40, 1994)
Year
DOI
Venue
1999
10.1109/18.782100
IEEE Transactions on Information Theory
Keywords
Field
DocType
kth-order spectral-null,kth order,high-order spectral-null code,spectral-null code,divisibility condition,asymptotically exact bound,length n,zero frequency,n behavior,known bound,exact asymptotic,polynomials,union,indexing terms,frequency,integral equations,lattices,codes,mathematics,exponential sum
Discrete mathematics,Combinatorics,Divisibility rule,Spectral analysis,Zero frequency,Mathematics
Journal
Volume
Issue
ISSN
45
6
0018-9448
Citations 
PageRank 
References 
4
0.95
9
Authors
2
Name
Order
Citations
PageRank
G. Freiman140.95
S. Litsyn260250.31