Finite State Markov Chain modelling of IEEE TGn channels for packet level simulators

In this paper we present a method for incorporating behavioral aspects of IEEE TGn small scale fading channel models into packet level simulators like Optimized Network Engineering Tool (OPNET) Modeler. Packet level behavioral aspects are abstracted through optimally designed Finite State Markov Chain (FSMC) which is constructed from sample domain IEEE TGn channel fading amplitude or fading power profiles. We have validated accuracy of the modeled FSMC TGn channel through statistical autocorrelation function (ACF) measurements. In addition, to capture the realistic propagation conditions of wireless environments in the simulation we have integrated floor plan driven path-loss models from RF planner tools like iBwave along with the FSMC fading channel model. End-to-end network performance results are presented to highlight the need of such modeling technique to effectively capture the effects of small scale fading and path-loss models in packet level simulations.