Title
Constructions of families with unequal auto and cross-correlation constraints
Abstract
Yang and Fuja [1] presented constructions of codes with unequal correlation constraints (λc a). And specifically they have constructions for the case where λa = 2 λc = 1. In their work they argue that it is important to make the cross-correlation (λc) as small as possible, and not necessarily λa = λc. In this work we present a method to generate new Yang-Fuja type families with correlation constraints where λc a. In [12], [10], [9] we presented a method to increase the size of a family of a double periodic sequence with Optical Orthogonal Code (OOC) length n = mp where m = p - 1, and p is a prime. In this work we present a new method that increases the size of a family of double periodic sequences without the restriction on m, we present a method to increase the weight of a double periodic array, and then combine both methods to produce Yang-Fuja type families of double periodic arrays with λc a. One of our main results is a theorem (Theorem 3, Section IV) that estimates λc. With this theorem we obtain two new constructions of Optical Orthogonal Codes with λc a.
Year
DOI
Venue
2009
10.1109/ISIT.2009.5205924
ISIT'09 Proceedings of the 2009 IEEE international conference on Symposium on Information Theory - Volume 1
Keywords
Field
DocType
unequal auto,Yang-Fuja type family,Optical Orthogonal Code,double periodic array,unequal correlation constraint,new Yang-Fuja type family,cross-correlation constraint,correlation constraint,Optical Orthogonal Codes,new method,double periodic sequence,new construction
Cross-correlation,Discrete mathematics,Combinatorics,Digital watermarking,Optical correlation,Image processing,Construction industry,Correlation,Mathematics
Conference
Citations 
PageRank 
References 
1
0.38
11
Authors
2
Name
Order
Citations
PageRank
José R. Ortiz-Ubarri1224.28
Oscar Moreno2192.83