DocumentCode :
797770
Title :
Upper bounds and Hamming spheres under the DC constraint
Author :
Waldman, Helio ; Nisenbaum, Eduardo
Author_Institution :
Dept. of Commun., State Univ. of Campinas, Brazil
Volume :
41
Issue :
4
fYear :
1995
fDate :
7/1/1995 12:00:00 AM
Firstpage :
1138
Lastpage :
1145
Abstract :
Upper bounds on the rate of codes in DC-constrained spaces are derived for imbalances 3, 4, and 5. The new bounds are based on the identification and size calculation of the minimal Hamming spheres. A new combination of the Hamming and Plotkin (1960) bounds for constrained spaces is obtained
Keywords :
binary sequences; error correction codes; DC constraint; DC-constrained spaces; Hamming bounds; Hamming spheres; Plotkin bounds; binary DC-free codes; code rates; error correcting codes; identification; minimal Hamming spheres; size calculation; upper bounds; Binary sequences; Conferences; Eigenvalues and eigenfunctions; Error correction codes; Hamming distance; Information theory; Scholarships; Upper bound;
fLanguage :
English
Journal_Title :
Information Theory, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9448
Type :
jour
DOI :
10.1109/18.391257
Filename :
391257
Link To Document :
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