WLCp2-03: Analytical Investigation with Markov Models of Selective Repeat Type II Hybrid ARQ

This paper presents an analytical model for the analysis of hybrid ARQ techniques on discrete time Markov channels by means of Markov chains. The first contribution is an original proposal to track the outcome of the packet transmissions in a generalized hybrid ARQ transmission system, deriving an appropriate Markov chain. Also, an example is given of how to put this Markov chain in relationship with a discrete-time Markov channel description. This framework can be used to evaluate from the theoretical point of view the performance of truncated type II hybrid ARQ techniques, deriving in general some useful insight on the behavior of such systems.