Previous research in satellite constellation designs has focused on Low Earth Orbit (LEO) communication systems that service a global market of uniform demand. This paper addresses the challenge of designing a hybrid satellite system constellation (e.g., LEO satellites with elliptical orbiting satellites) to meet the demands of the emerging satellite broadband market. The broadband market model...

Satellite networks have been widely investigated both in the business and academia for many years, with many important routing algorithms reported in the literatures. However, fewer existing routing algorithms focus on the trade-off between the routing survivability and the routing computation and storage overheads. Due to topological dynamics, it is difficult to effectively apply the conventio...

This paper proposes a novel dynamic bandwidth assignment multiple access (DBAMA) protocol employing a dynamic packet reservation technique for direct user terminal access to a ATM-based low earth orbit (LEO) satellite communications system. Performance analyses by simulations are presented. Methods to efficiently integrate ATM-based BISDN traffic are considered.

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Communication with Low-Earth Orbit (LEO) satellites requires the set up of a ground station which is a complex and costly installation. Moreover, a LEO satellite is accessible only during certain time slots from a given ground station. In other words, access to LEO satellites is on an intermittent basis and is constrained by the availability of ground stations. The work presented in this paper ...

We investigate a topological design and routing problem for Low-Earth Orbit (LEO) satellite communication networks where each satellite can have a limited number of direct inter-satellite links (ISL's) to a subset of satellites within its line-of-sight. First, we model LEO satellite network as a FSA (Finite State Automaton) using satellite constellation information. Second, we solve a combined ...

In this chapter, we survey communication related issues arising in the context of Low Earth Orbit (LEO) satellite constellations. In particular, we study the impact of the predictable movement of the satellites on the techniques used in topological design, routing, and hand-over strategies.

The effects of aerodynamic perturbation forces on the orbital life of low altitude Low Earth Orbit (LEO) satellites are investigated, with a focus on the secular perturbations caused by lift and drag. The secular effects can be divided into the circularization of the orbit for both lift and drag perturbation forces, and the decrease of the orbit semimajor axis for drag perturbation. A study of ...

One of the unique traffic features of low earth orbit (LEO) satellite networks is time-variant and nonuniform load distribution. This feature results in a locally biased congestion problem for the LEO satellite systems. In this paper, we propose a traJjcic load balancing scheme to resolve the congestion problem in such traffic scenarios. The proposing scheme makes use of near-neighbor residual ...

Now a days Low earth orbit satellite networks are used to provide global coverage to users in remote areas. Since LEO’s are continuously revolving, they traverse their orbits and thus cause frequent user handovers. So for providing better service to the user and improving the LEO satellite network performance a Cross-layer design and Ant-colony optimization based Loadbalancing routing algorithm...