DNA codes from skew dihedral group ring

Abstract

In this work, we present a matrix construction for reversible codes derived from skew dihedral group rings. By employing this matrix construction, the ring {F}_{j, k} and its associated Gray maps, we show how one can construct reversible codes of length n2^{j+k} over the finite field {F}_4. As an application, we construct a number of DNA codes that satisfy the Hamming distance, the reverse, the reverse-complement, and the GC-content constraints with better parameters than some good DNA codes in the literature.