  In addition to their applications in data storage, communications systems,
and consumer electronics, LCD codes -- a class of linear codes -- have been
employed in cryptography recently. LCD cyclic codes were referred to as
reversible cyclic codes in the literature. The objective of this paper is to
construct several families of reversible cyclic codes over finite fields and
analyse their parameters. The LCD cyclic codes presented in this paper have
very good parameters in general, and contain many optimal codes. A well rounded
treatment of reversible cyclic codes is also given in this paper.
