International Journal of Engineering Sciences & Research Technology (IJESRT)
The demand for mobile communication has been growing day-by-day. Resource flexibility is one of the most important issues in the coming generation of mobile communication. Radio frequency channels are a scarce resource and have to be reused as much as possible. Different techniques are required to increase the efficiency & flexibility of the network to deal with new services and to adopt the new traffic profiles and characteristics Many channel assignment schemes such as Fixed Channel Assignment (FCA), Dynamic Channel Assignment (DCA) and Hybrid Channel Assignment (HCA) have been proposed to assign frequencies to cells with a goal to maximize the frequency reuse.