Dynamic guard channel allocation scheme for calls in WONs

Future wireless networks will provide ubiquitous communication services to a large number of mobile users. The design of such networks is based on heterogeneous wireless overlay networks that allow efficient use of the limited available spectrum, and also cover different ranges of coverage areas. A dynamic guard channel allocation scheme for calls in wireless overlay networks is developed. The new scheme considers the mobility, current location of mobile terminals, and bandwidth status in allocating bandwidth for new calls in order to guarantee the quality of service for all calls