OPNET simulation modeling and analysis of enhanced Mobile IP

To facilitate simulation studies of Mobile IP performance and comparative analysis of enhanced mobile IP handover mechanisms, we have developed a simulation model of Mobile IP using OPNET modeling environment. In this paper, we provide basic design concepts and implementation details of the simulation model, as well as descriptions of the advanced features of IP mobility architectures implemented as part of the model, e.g. buffering and regional registration. Based on the analysis of simulation results obtained using the developed simulation models, a few suggestions are made for the use of Mobile IP and related enhanced mechanisms in selected wireless Internet scenarios.