Improving Vertical Handover over Heterogeneous Technologies Using a Cross Layer Framework

With the evolution of the Mobile Users number and the Application constraints, no single Network Technology can satisfy the Mobile User requirements overall situation. To achieve anywhere and anytime connectivity, inter working different network technologies is an important issue to consider. If we consider a Multi Interface Mobile User supporting WLAN and Cellular networks which is under the coverage of a WLAN and a cellular network in the same time. The main objective of a Mobile User is to benefit from the high Quality of Service (QoS) with the minimum cost. If the WLAN can satisfy the Mobile User requirements in terms of QoS, no network switching is required. Otherwise, switching to the cellular network is required. Seamless switching between different wireless technologies referred as Vertical Handover is becoming a requirement nowadays. In our paper, we address the Mobility Management between the LTE and the Mobile Ad hoc Networks (MANETs).