by Yukio Hashimoto, Behcet Sarikaya
Proceedings of Third International Workshop on Satellite-Based Information Services (WOSBIS `98
http://wwwsv1.u-aizu.ac.jp/%7esarikaya/publ/papers/wosbis.ps.gz
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Abstract:
This paper presents the architecture and operational principles of a mobile data network with a Teledesiclike low-earth orbit (LEO) satellite backbone. The mission of the network is to provide worldwide data communication compatible with the Internet. First, a precise denition of the network architecture which consists of LEO's with intersatellite links, gateway stations, standard terminals and mobile terminals is given. The proposed model is a hybrid design in which the responsibilities for routing and user tracking are shared between the satellites and gateway stations. Based on the model, a unicast routing algorithm, compatible with the Internet Protocol (IP), is developed. Analytical modelling is developed establishing the delay properties of unicast datagrams. Finally video and audio transmission in the network are considered. It is shown by simulation that the network can provide low delay and high frame rate audio and video transmission to mobile users.
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