Title :
Upper bounds and Hamming spheres under the DC-constraint
Author :
Waldman, Helio ; Nisenbaum, Eduardo
Author_Institution :
DECOM/FEE/UNICAM, Sao Paulo, Brazil
fDate :
27 Jun-1 Jul 1994
Abstract :
Upper Hamming bounds are derived for the asymptotic rates R of DC-free binary codes with imbalances 3, 4 and 5. For large enough fractional distances δ, we derive an improved Plotkin bound, given by the straight line that contains the cutoff point (R=0, δ=.5) and is tangent to the Hamming bound
Keywords :
binary sequences; codes; DC-constraint; DC-free binary codes; Hamming spheres; Plotkin bound; asymptotic rates; cutoff point; fractional distances; imbalances; tangent; upper bounds; Binary codes; Combinatorial mathematics; H infinity control; Upper bound;
Conference_Titel :
Information Theory, 1994. Proceedings., 1994 IEEE International Symposium on
Conference_Location :
Trondheim
Print_ISBN :
0-7803-2015-8
DOI :
10.1109/ISIT.1994.394761
