Investigation on data link layer ARQ and HARQ retransmission rates

This paper, we present a simulation result on retransmission rates of an HARQ (Hybrid Automatic Repeat Request) and pure ARQ schemes at different channel Signal-to-Noise ratio (SNR). We showed that retransmission is improved by as much as 2dB when HARQ was used. It was also shown that HARQ retransmission scheme perform well at lower SNR. The result of this investigation will helps us in the design of an augmented Hybrid Type-II ARQ retransmission scheme.