Economically viable support for internet mobility

The support for mobility is a major requirement for the next Internet. Although several mobility solutions are proposed, none of them has been largely deployed, due to various impediments, among which, non being economically viable, we believe is the principal one. We propose a business oriented mobility framework - Mobility Support Service (MSS), that will facilitate mobility on the Internet. MSS will be offered as a value-added service to paying mobile customers. In MSS, user identifiers (ID) are separated from network addresses, such as IP addresses. MSS uses IDs to locate the nodes and network addresses as points of attachment for the nodes. MSS is based on a flexible naming structure and a distributed service. MSS is scalable and flexible and business oriented. MSS does not require changes in existing network architecture nor services. The mobility support can be offered by dedicated or traditional service providers. We present two MSS distributing algorithm that enable tradeoff among costs and QoS. We show by simulations the advantages of MSS compared to existing mobility solutions, especially regarding scalability and service delay.