Markov analysis of Selective Repeat Type II Hybrid ARQ using block codes

This paper presents an analytical model for the study of Hybrid ARQ techniques on Discrete Time Markov Channels by means of an appropriate, Markov chain, which tracks the transmission outcome and can be used to evaluate several performance metrics, including throughput; loss probability, number of retransmissions, and delay. The analysis is carried out with the assumptions that the information frame is encoded by the source with a linear block code and hard decoding is used at the receiver side. We finally present numerical evaluations for the performance of a truncated Type II Hybrid ARQ technique based on Reed Solomon erasure codes.