P Chella Pandian - Department of Mathematics, Srimad Andavan Arts and Science College(A), Tiruchirappalli, Taminadu, India

In this paper, lower bound and upper bound on the covering radius ofDNA codes over a finite ring N with respect to Chinese euclidean distanceare given. Also determine the covering radius of various Repetition DNAcodes, Simplex DNA code Type α and Simplex DNA code Type β andbounds on the covering radius for MacDonald DNA codes of both typesover N.

DNA Code, Finite Ring, Covering Radius, Simplex Codes