A Lightweight, Link-layer, Source-based Routing Protocol for LEO Satellite Networks
نویسندگان
چکیده
This paper addresses the networking issues of an ongoing project that evaluates the feasibility of a system consisting of a large constellation of low-earth-orbit (LEO) Laser Communication Satellites (LCS). Due to the strict payload constraints imposed by the LCS technology, we propose a lightweight, link-layer, source-based routing protocol that will extend the LEO infrastructure to the fast growing terrestrial IP and ATM networks. This protocol relies on the ground-stations to calculate source routes based on a positiondependent addressing scheme and a fixed constellation topology, thereby allowing satellites to simply forward fixed-size packets. We design this protocol to be topology agile, fault tolerant, and network protocol independent. In addition, it will deliver packets in order and provide load balancing.
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