Evaluating Congestion of a Wi-Fi Positioning System in a Shopping Mall Simulation for Indoor Navigation

GPS has long been recognized as a prevalent positioning system, yet Wi-Fi Positioning Systems (WPS) are gaining increased attention as a viable alternative for scenarios in which GPS availability is limited [1, 2]. Numerous empirical studies have demonstrated the feasibility of utilizing Wi-Fi networks for location determination, utilizing a diverse array of complexities and techniques. However, these investigations have primarily focused on the accuracy of a single user, rather than examining the practical implications of multi-user scenarios. This research project proposes to investigate the Time of Flight positioning methodology through simulation utilizing the ns-3 platform. The simulation will be designed to replicate a shopping mall environment, incorporating multiple users in a large room and evaluating the accuracy of position determination through Round Trip Time (RTT) analysis. Furthermore, the impact of network congestion during periods of high traffic, as well as the cost implications of maintaining such a system will also be analyzed.