This document discusses WiFi network simulator projects and tools. It lists several popular network simulators like NS-3, OPNET, Omnet++ and Qualnet that can be used for WiFi network simulation projects in MATLAB. It then provides examples of recent research topics conducted using WiFi network simulators, including energy efficient load balancing between LTE and WiFi networks and jamming-resistant frequency hopping in cognitive WiFi networks. Finally, it outlines some channel estimation models used in WiFi network simulator projects, such as energy optimization with delay sensitive traffic and transmit power adaptation in WiFi mesh networks for rescue operations.