International Journal of Engineering Research and Applications (IJERA)
Mobile network traffic is growing rapidly, and service providers must manage their networks efficiently to meet consumer demand. Mobile data offloading is the use of complementary network technologies for delivering data originally targeted for cellular networks. Access Network Discovery and Selection Function (ANDSF) is the most complete 3GPP approach to date for controlling offloading between 3GPP (such as HSPA or LTE) and non-3GPP access networks (such as Wi-Fi or WIMAX). The purpose of the ANDSF is to assist user devices to discover access networks in their vicinity and to provide rules (policies) to prioritize and manage connections to all networks.