Toward A Seamless Mobility Mangement in Next Generation Networks

paper describes a new vision for mobility management in next generation all IP networks. We propose a new integration architecture for the third generation wireless communication (3G) from one side and WLAN 802.11 from the other side. The proposed architecture offers mobile users, roaming in the next generation networks, service continuity without QoS degradation. In this architecture, an inter-domain management module is introduced so that the user is guided to the next access network capable of offering the user the same QoS and context parameters. The mobility management is based on a pre-network selection such as the "make-before-break" approach in fast MIP handovers coupled with the context transfer protocol CTP to ensure service continuity with minimum QoS degradation.