Some results on the statistics of delay terms in SR ARQ on Markov channels

In this paper we explore the packet delay statistics of a selective repeat ARQ scheme on a discrete time Markov channel with non-instantaneous round trip delay. In particular, we are interested in obtaining considerations about the queueing delay of the process and also possible comparisons between different delay components. For this reason, we analyze in detail the impact of system parameters, such as the packet arrival rate and the packet error probability, on the terms which constitute the overall delay. Finally, we explore the connection of these numerical evaluations with the QoS requirements connected to delay for multimedia traffic.