Simulation and analysis of ZigBee - WiFi interference

In this paper we present evaluation of ZigBee network and coexistence of ZigBee and WiFi network. We provide a simulation in OPNET Modeler using two scenario. In the first scenario we evaluate ZigBee network topology then in the second scenario we analyze coexistence between ZigBee and WiFi network. The result shows that tree topology on ZigBee gives highest throughput while mesh topology has the lowest end-to-end delay. In coexistence between WiFi and ZigBee, interference occurs and decrease the throughput on ZigBee network. The other result is that star topology makes wireless LAN has highest throughput while mesh topology gives the lowest http page response time in wireless LAN.