ON ADAPTIVE GO-BACK-N ARQ PROTOCOL FOR VARIABLE-ERROR RATE CHANNELS

This letter presents a simple method to simultaneously optimize a mult iplicity of design parameters for the adaptive automatic repeat reques t strategy previously reported, and subsequently provides a quantitati ve measurement that rec fleets the appropriateness of the selected par ameters. An exact analytical expression that allows us to compute the throughput crossover probability between the two different protocols i s derived. The results provide fundamental insights into how these key parameters interact and determine the system performance.