Dynamic proxy based distributed mobility management in PURSUIT

The Publish-Subscribe Internet Technology (PURSUIT) project aims at developing a new internetworking architecture for the Future Internet. The internetworking architecture of PURSUIT has adopted a Publish-Subscribe Internet (PSI) architecture that is one of the most promising approaches to solve the current Internet´s limitations including mobility support. In this paper, a new mobility support scheme is introduced to provide better handover performance for the PSI architecture. In the proposal, a branching point in a network is dynamically selected as a proxy to support seamless handover. The proxy duplicates packets (i.e., contents) from a content source to a new attachment point of a subscriber. Numerical results show that the proposed scheme provides better handover performance compared to that of the basic PSI architecture in terms of handover latency. The required handover preparation time and signaling cost of the proposed scheme are also analyzed objectively.