HarMoNy - HIP Mobile Networks

We present arguments to support the co-existence of two or more mobility management schemes, and detail a novel approach to integrate the mobility and multi-homing support provided by a higher level mobility mechanism, the host identity protocol (HIP), with a lower level mobility mechanism, network mobility (NEMO, i.e. mobile IPv6 enabled routers). Our design integrates a context aware handoff system that triggers the dynamic switching of the HIP host identity binding between a private address managed by a mobile router and a topologically correct address, in order to simultaneously take advantage of the efficient handover offered by vehicular networks with NEMO support, and the infrastructure-less operability of HIP when mobile routers become unavailable. We discuss implementation and detail how our scheme uses context cues such as vehicle speed to switch between NEMO and HIP mobility handling. We present results of emulation experiments that support our design