Abstract
AbstractThis paper investigates supporting IPv6, the next generation IP in a Teledesic‐like low earth orbit (LEO) satellite backbone. The network architecture consists of LEO satellites with intersatellite links, gateway stations, standard terminals and mobile terminals. This network offers mobile data services like earth cellular networks. Due to its enlarged addressing space, IPv6 is selected as the network layer. For routing IPv6 datagrams in this network, a tunnelling approach is taken in which IPv6 datagrams from/to the Internet are fragmented/reassembled into ATM‐cell‐like packets. To route these packets inside the LEO‐constellation, we design a unicast link‐state routing algorithm in which the responsibilities for routing are shared between the satellites and gateway stations. For user mobility, Mobile IPv6 extended for paging the users in standby mode is used. The paper concludes with a presentation of simulation results. Copyright © 2001 John Wiley & Sons, Ltd.
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