Requirements and adaptation solutions for transparent handover between Wifi and Bluetooth

Although there currently exists several technologies for wireless communication, nothing is available for automatic handover between them. Current solutions to the handover problem just focus on the changing cell within the same system. In this paper we try to analyze the performance of the link-layer handover in IEEE 802.11 and Bluetooth systems. Then, we propose a new virtual interface architecture as a solution to the vertical handover problem. We show how the handover can be achieved when the IP subnet is changed.