International Journal of Engineering Trends and Technology
IEEE 802.16 network protocol is designed to provide a Worldwide interoperability for Microwave Access (WiMAX). Due to limited bandwidth and an expensive radio spectrum available for communication, it is necessary to use one bandwidth more than one time in a same network when it became unused. For that purpose \"Bandwidth recycling\" concept is introduced. The spectrum (bandwidth) is specifically allocated by agency to various users, but many times it is seen that the spectrum is not fully utilized by the users in the specific interval.