Cross-layer Analysis and Design of SR-ARQ Combined with Adaptive Modulation Systems
A cross-layer analysis and design algorithm of selective repeat ARQ(SR-ARQ)combined with adaptive modulation systems(AMS)is presented.Considering the parameters of both AMS and ARQ,this algorithm constructs the model of the system using finite states Markov chain(FSMC),and then derives the accurate throughput on the basis of renewal-reward theorem.This result is a good reference in designing of such practical communication systems.The results of the computer simulation validate the accurateness of the proposed cross-layer analysis algorithm,and show how to choose the appropriate parameter based on the analysis results.