Impact of the Physical Layer Modeling on the Accuracy and Scalability of Wireless Network Simulation
Recent years have witnessed a tremendous growth of research in the field of wireless systems and networking protocols. Consequently, simulation has appeared as the most convenient approach for the performance evaluation of such systems and several wireless network simulators have been proposed in the last years. However, the complexity of the wireless PHYsical layer (PHY) induces a clear tradeoff between the accuracy and the scalability of simulators. Thereby, the accuracy of the simulation results varies drastically from one simulator to another. In this paper, the authors focus on this tradeoff and they investigate the impact of the physical layer modeling accuracy on both the computational cost and the confidence in simulations.