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Topological design, routing and capacity dimensioning for ISL networks in broadband LEO satellite systems

Werner, M. and Frings, J. and Wauquiez, F. and Maral, G. (2001) Topological design, routing and capacity dimensioning for ISL networks in broadband LEO satellite systems. International Journal of Satellite Communications, 19 (6), pp. 499-528.

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Abstract

This paper considers the network design of intersatellite link (ISL) networks in broadband LEO satellite systems, where the major challenge is the topology dynamics. First, a general method to design convenient ISL topologies for connection-oriented operation is presented, and a reference topology for numerical studies is derived. A permanent virtual topology is then defined on top of the orbiting physical one, thus forming a framework for discrete-time dynamic traffic routing. On this basis, heuristic and optimization approaches for the combined routing and dimensioning task, operating on discrete time steps, are presented and their performance is numerically compared. It is shown that minimizing the worst-case link capacity is an appropriate target function, which can be formulated as linear optimization problem with linear constraints. Using linear programming (LP) techniques, the dimensioning results are clearly better than with simple heuristic approaches.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=2002,
Title:Topological design, routing and capacity dimensioning for ISL networks in broadband LEO satellite systems
Authors:
AuthorsInstitution or Email of Authors
Werner, M.UNSPECIFIED
Frings, J.TU München
Wauquiez, F.UNSPECIFIED
Maral, G.Ecole Nationale Supérieure des Télécommunications, Toulouse
Date:2001
Journal or Publication Title:International Journal of Satellite Communications
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:19
Page Range:pp. 499-528
Status:Published
Keywords:capacity dimensioning; routing; topological design; intersatellite link (ISL) networks; low earth orbit (LEO) satellite systems
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W KN - Kommunikation/Navigation
DLR - Research area:Space
DLR - Program:W KN - Kommunikation/Navigation
DLR - Research theme (Project):UNSPECIFIED
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation
Deposited By: elib DLR-Beauftragter
Deposited On:16 Sep 2005
Last Modified:06 Jan 2010 21:00

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