Future wireless networks will be loaded with voice,

messaging, file transferring, multimedia teleconferencing,

games, and Web browsing. With the increasing traffic and

real time demand the current status of networking cannot

meet the demands of future wireless applications. Traffic

will be jammed on current wireless channels and

customers will enter into a deadlock situation. Therefore,

new models and approaches are required to meet the

customer demands. But, it is a known fact that the

available spectrum is sold out and currently used in static

mode. Therefore the emergence of next generation wireless

technologies will enhance the effectiveness of the existing

methods. One of the possible approaches will be allocating

the spectrum dynamically by developing new algorithms

and protocols.