Markov models for block code error control systems on fading RF channels

The authors investigate the underlying statistical structure of the block error detection, correction, and misdetection events of a block code on a discrete renewal inner channel, such as a fading RF channel. They show that these events can be represented by outer channel models, i.e. partitioned Markov processes, similar to the inner channel models. Analytical procedures to determine the parameters of these outer channel models are presented. The application of the models to the design of error control systems, such as ARQ (automatic repeat-request) systems, is investigated. Consideration is also given to the compaction of the channel error stream to be recorded or stored, in order to parameterize the channel models. The results of several simulations carried out to verify the analytical procedures are presented