Ontology-based context management agent for vertical handoff use Fuzzy logic decision in heterogeneous network

In recent years we 've seen an increase in number of mobile devices and mobile applications, running over different types of networks (e.g., WLAN, 3G, 4G., UMTS, WiMAX...) that enable any-where, any-time kind of applications. The user is getting flooded with these applications and the information they provide. Seamless mobility intersystem roaming across heterogeneous wireless access networks will be one of the main features in the management architecture of future generation mobile networks. In this paper we propose an ontology-based context management agent policy to manage access networks and handover fuzzy logic decision algorithm for future heterogeneous wireless networks.