International Journal of Computer Applications
"The current systems of communication know a considerable development thanks to the mobile communication and more particularly the cellular telephony. Reason for which the suppliers of service begin to find the big motivation, and make a commitment to have the means to be invested in enormous infrastructures of network. The conception of big cellular networks is a complex problem, which turns around a big impact: the quality of the service and the cost of the network. With the continuous and fast growth of the traffic of communication, the large-scale planning becomes harder and harder."