Satellite constellation networks

International Conference on Telecommunications (ICT'00)

Two different routing algorithm categories are studied in this paper for a typical LEO satellite constellation. Shortest path algorithms and optimal routing. Their performance is investigated through extended real time simulations. In the context of satellite constellations the basic parameters for a typical network such as delay, throughput, link utilization must be supplemented by new factors imposed by the nature of satellite operation, like the handover procedures, the non-uniformity of load distribution in the space segment and the continuous topology variation. The pros and cons of the techniques are illustrated and helpful conclusions for the network design are provided.

Within this paper we examine a non-geostationary satellite constellation network with inter-satellite links (ISLs) for global air traffic control (ATC) and air passenger communication (APC). More specifically, an analysis is done to investigate the impacts of different routing policies on the end-to-end delay, and a general model describing the delays is developed. All considerations are based on a Galileo-like satellite constellation network and real global flight data of all commercial flights during one day.

IET Communications, 2010

The authors examine two different non-geostationary satellite constellation networks with intersatellite links for global air traffic control and air passenger communication. After developing a traffic model for aeronautical communication services, the authors derive bandwidth requirements for such a global system. The influence of different routing policies is discussed and they show that link loads are comparable for both medium earth orbit and low earth orbit constellations. All considerations are based on real global flight data of all commercial flights during 1 day.

Internetworking with satellite constellations, 2001

Here, we examine networking and internetworking issues affecting satellite networking in complex satellite constellation networks, and determine what is needed in order to support services based on the TCP/IP suite well in satellite constellations.

Electronics and Communications in Japan (Part III: Fundamental Electronic Science), 1993

Recently, research has been very active in communication networks that could service the entire globe by using multiple, low, earth-orbiting satellites. This has been spurred on by progress in the field of digital communication technique, technical advances of satellite launching, and a decrease in the costs of small-sized satellites.

Proceedings International Symposium on Parallel Architectures, Algorithms and Networks. I-SPAN 2000, 2000

Network performance of non-geostationary constellations equipped with intersatellite links , 1995

An ideal, simplified, non-geostationary satellite constellation network, with varying numbers of intersatellite links on each satellite, is presented and analysed, using a minimum-path, circuit-switching approach.

International Journal of Satellite Communications, 2001

This paper examines strategies for implementing and operating IP routing effectively within satellite constellation networks, given known constraints on the constellation resulting from satellite mobility, global visibility, routing and addressing.

19th International Communication Satellite Systems Conference (ICSSC '01)

The rosette satellite constellation network with intersatellite links (ISLs) presents unique properties, in providing locally separate ascending and descending network surfaces of interconnected satellites with which the ground terminal can communicate. We present a novel approach exploiting this rosette geometry, by use of control of handover and management of satellite diversity, to determine which surface a ground terminal will select for communication.

International Journal of Satellite Communications, 1999

A real time simulation study for the evaluation of traffic flow in low earth orbit (LEO) satellite constellations, used for the interconnection of high-speed networks, is presented in this paper. The proposed model simulates end to end the traffic process at the packet level, supporting successfully the implementation of self-similar traffic sources , a modeling approach that has been considered more realistic than the well-known Poisson, for real-time communications. An in-depth study for the establishment of inter-satellite links (ISLs) and the design of the terrestrial and space segments is presented and the performance of the integrated system is evaluated in terms of delay and throughput parameters.