Route optimization in nested mobile network using direct tunneling method

Abstract

We are noticing the emergence of various internet-ready electronic devices as well as popular laptops and personal digital assistances, and most of us want to access the Internet while moving our locations. Recently, new internet protocol IPv6 is being extended to support not only host mobility but also network mobility. Real situation will be a nested mobile network, where mobile networks would be nested as they change locations. Most serious problem in a nested mobile network is the complexity of routing path of packets, and the complexity grows as the nesting level increases. In this paper, we propose 'direct tunneling method', which delivers packets through optimized path even when mobile networks are nested. We show the effectiveness of our method by simulation results. © Springer-Verlag Berlin Heidelberg 2005.