“…There are many results on the theory of deviations for renewal processes or renewal reward processes. See, for example, Serfozo [18], Glynn and Whitt [8], Jiang [11], Chi [4], Lefevere et al [15], Borovkov and Mogulskii [1], Tsirelson [21], Logachov and Mogulskii [16], and the references therein. However, these proposed approaches cannot be applied directly to our case, since most of them require constraints on moments or moment generating functions for inter-occurrence times, which are not fulfilled by A n in our situations.…”