Abstract Node Mobility in Unstructured P2P Networks

Abstract

P2P networks research is mainly focused on techniques for efficiently finding files to download from the network. Problems like churn and robustness have been thoroughly analyzed. Mobility in P2P networks is still an open topic. In this paper, we address the problem of deciding what to do in the case of node mobility. A node which knows that it is going to move in another part of the network wants to take the best decision what to do with its documents in the interest of the overall network performance. This problem is particularly challenging in the special case of a node which is the primary source for its documents, because of update costs and privacy issues. In this paper we identify possible decisions and circumstances in which a particular decision becomes the “best decision ” for the special case mentioned above. We also provide some experimental cases and results that compare the options with regard to different performance metrics.