Mobility management for IP/LEO satellite network using geographical location information

摘要

Mobility management is one of the problems on LEO (Low Earth Orbit) IP satellite network. In mobility management, a binding between unique name of a node and position in a network of the node is needed. In IP network, binding update is required when handover is occured, because IP address which indicates the position in a network of the node changes with handover. In LEO satellite network, however concentrated handover are caused by fast movement of satellites. So, existing mobility management schemes are not suitable for LEO network, because control traffic when binding update also occurs intensively. In this paper, we propose new mobility management scheme that separates binding update from handover by using geographical information of the node. And then we evaluate proposed scheme and show the validity.