Abstract
As wireless and satellite networks become widely used, new ways to think communication can be envisaged. In particular, a greater degree of connectivity is almost becoming a necessity for the users on the go, being connected whatever their locations are. Different definitions of mobility are emerging, and in SATSIX three mobility scenarios are defined, namely discrete mobility, continuous mobility and seamless mobility. Next, two mobility contexts; macro-mobility and micromobility, according to network hierarchy have been considered. To improve the mobility management, and reducing signaling overhead and handover delay when using MIPv6, the enhancement protocols HMIPV6, FMIPv6 and the combination FHMIPv6 are investigated. Application mobility is analyzed as a complement to network layer mobility. The project also addresses the impacts on several others key networking functions like multicast, QoS and PEP.