Analyzing and Improving the Simulation Algorithm of IEEE 802.11DCF Error Frame Model in QualNet Simulator

In this paper we focus on the concept of IEEE 802.11 DCF error frame model. Based on the analysis of the model in detail, we point out the error of the simulation algorithm of the DCF error frame model in QualNet simulation environment. Furthermore, we modify the simulation algorithm in QualNet strictly according to the specifications of the DCF error frame model. The simulation results show that compared with the original simulation algorithm, the modified algorithm can simulate the related specifications of the DCF error frame model more correctly, thus can provide more reliable simulation results.