Core-based Shared Tree Multicast Routing Algorithms for LEO Satellite IP Networks

IP-Based Routing Algorithms for LEO Satellite Networks in Near Polar Orbit

In this work, several aspects on IP routing for LEO satellite networks are investigated. First, a proper downlink routing procedure is defined, which has the advantage to allow the identification of the egress satellite, without the need of information from GPS systems to determine the position of the destination mobile terminal. Furthermore, the performance of the routing algorithm that minimi...

On-Demand QoS Multicast Routing for Triple-Layered LEO/HEO/GEO Satellite IP Networks

In this paper, for the sake of better global coverage, we introduce a novel triple-layered satellite network architecture including the Geostationary Earth Orbit (GEO), the Highly Elliptical Orbit (HEO), and the Low Earth Orbit (LEO) satellite layers, which provides the near-global coverage with 24 hour uninterrupted over the areas varying from 75° S to 90° N. On the basis of this satellite net...

A Routing Protocol for Hierarchical LEO/MEO Satellite IP Networks

The rapid growth of Internet-based applications pushes broadband satellite networks to carry on IP traffic. In previously proposed connectionless routing schemes in satellite networks, the metrics used to calculate the paths do not reflect the total delay a packet may experience. In this paper, a new Satellite Grouping and Routing Protocol (SGRP) is developed. In each snapshot period, SGRP divi...

Design of IP-based Routing in a LEO Satellite Network

Priority-based Adaptive Shortest Path Routing for IP over LEO Satellite Networks

Designing an efficient routing algorithm for LEO satellite constellations is crucial for optimizing IP over Satellite (IPoS) network resources. Since there could be many shortest paths between two satellites, an efficient routing algorithm should provide better utilization of these paths. For this purpose, we propose a Priority-based Adaptive Routing (PAR) technique, which distributedly sets th...