Abstract: The world of wireless communications is quickly progressing. Technologies under research and development promise to deliver more services to more users in less time. Emerging wireless technologies: Wireless Local Area Networks (WiFi-802.11n), Wireless Personal Area Networks (ZigBee) and Wireless Metropolitan Area Networks (WiMAX).. In this paper physical layer parameters are tuned to study the characteristics of ZigBee and WiMAX technologies independently and proposes a study and comparison of two of most advancing communication technologies (Zigbee and WiMax). Both of these technologies are breakthrough in communication and both of them have their own positive and negative points. In some situations, in a near future highly advanced and area specific application of WSN will be required. We will analyze these two technologies, which would be appropriate for those applications & analyse weather, location and terrain conditions are capable for the communication through such networks.