Performance evaluation of LEO satellite constellations with inter-satellite links under self-similar and Poisson traffic

Papapetrou, Evangelos; Gragopoulos, Ioannis; Pavlidou, Fotini‐Niovi

doi:10.1002/(sici)1099-1247(199901/02)17:1<51::aid-sat638>3.0.co;2-c

Cited by 20 publications

(4 citation statements)

References 5 publications

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“…The analysis of a satellite system, through simulation, comprises many issues [4]: some of these are the precise definition of the coverage area as the inter-satellite is moving, establishment of the inter-satellite links (if the system employs ISLs), the dynamic routing in the derived topology, the minimization of path switching, the establishment of the up-down link, the handoff conditions and finally the pattern analysis of the traffic originating from or terminating at the earth stations. If the coverage area of a place must be continuous, a GEO orbit can be selected or a constellation of Non Geostationary satellite orbit (NGSO) satellites can be designed to provide the necessary coverage overlap between successive satellites.…”

Section: O C E Vincent a N Nzeako 338mentioning

confidence: 99%

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An Analysis and Computation of Optimum Earth Geographical Coverage for Global Satellite Communications

Vincent¹,

Nzeako²

2013

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This paper presents simple mathematical mobility models for configuration of Global interconnectivity with LEO satellite systems. The aim of this paper is to investigate on the performance measures of the satellite mobility models regarding optimum Global coverage arc length depending on the satellite locations relative to the four zones (quadrants) of the earth surface. A typical body of the satellite was positioned at a modified height of 780 Km from the earth surface and revolving round the earth in a circle of radius, 7160 Km was carefully studied and analytically parameterized enabling the generation of realistic instantaneous coverage arc lengths data. We compared the minimum required instantaneous arc lengths for the three mobility models that should cover the geographical coverage areas of the earth. The impact of the satellite movements relative to the earth locations was that the instantaneous coverage arc lengths were exponentially varying with time and continuously distributed within the four zones of the earth surface to provide continuous coverage around one polar orbit plane and assuming operations can continue down to an elevation angle of zero degree. The advantage of the derived mobility models is achieving almost 100% global coverage as a result of the dynamic behavior of the satellite playing an important role of providing instantaneous coverage arc lengths. This procedure also allows comparisons among different degrees of built-up zones of the earth surface as well as extra-polation to the different locations on the earth surface.

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Section: O C E Vincent a N Nzeako 338mentioning

confidence: 99%

“…In addition to providing global coverage, MSS can be connected to existing terrestrial-based telecommunication systems to share traffics [2]. Also satellite systems represent new ambitious solutions in an attempt of interconnecting fixed networks (Internet and ATM) worldwide for supporting real-time communications [4].…”

Section: Introductionmentioning

confidence: 99%

An Analysis and Computation of Optimum Earth Geographical Coverage for Global Satellite Communications

Vincent¹,

Nzeako²

2013

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“…ISLs act as lines joining the satellites (forming a chain) but, in order to obtain a continuous and nondegraded signal transmission, specific constraints of distance and relative velocity must be satisfied. [12][13][14][15] The analysis of such constraints has made it possible to select particular constellations that have been evaluated in terms of performance and costs. The results have been obtained with the support of the Satellite Tool Kit (STK) software (www.agi.com).…”

Section: Introductionmentioning

confidence: 99%

Interlink and coverage analysis for small satellite constellations

Cuollo

Ortore

Bunkheila

et al. 2012

Proceedings of the Institution of Mechanical Engineers, Part G:

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In this article, the use of both the well-known Walker constellations and a proposed Randomic one are studied focusing on the data exchange between small satellites and their coverage of the Earth. The term Randomic is adopted to define constellations that are composed of small satellites placed in orbits occasioned by 'catching a ride' on launchers intended for other payloads. Thus, if on the one hand this 'piggyback' configuration has the merit of saving launch costs, on the other hand the small satellites will generally end up in orbits not ideally suited to their intended mission. In any case, in order to ensure an appropriate communication chain between the satellites, Bit Error Rate has to be kept below certain levels and this in turn requires keeping satellites within appropriate limits of distance and relative velocity. Following a statistical analysis over the past decade of launches, aimed at establishing the most exploitable orbits for 'piggyback' configurations, an investigation into the use of this type of constellation has been conducted. The comparison with an optimal Walker configuration has highlighted the better performance of the Walker and the significant reduction of mission expenditure of the Randomic constellation

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“…Pio analutik, h proteinìmenh teqnik apoteleÐ èna sunduasmì enìc genetikoÔ algorÐjmou, grammikoÔ programmatismoÔ kai tou algo-rÐjmou Dijkstra. SÔmfwna me aut thn teqnik , kpoio posostì thc sunolik c qwrhtikìthtac twn endodoruforik¸n zeÔxewn desmeÔetai apokleistik gia thn thlepikoinwniak kÐnhsh me uyhl proteraiìthta.Sthn ergasÐa[PGP99] parousisthke èna ergaleÐo prosomoÐwshc se epÐpedo pakètou gia thn axiolìghsh teqnik¸n dromolìghshc se mh gewstatik doruforik sust mata. To ergaleÐo autì qrhsimopoi jhke metèpeita gia thn axiolìghsh thc apìdoshc tou algorÐjmou Dijkstra.…”

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Διαχείριση Τηλεπικοινωνιακής Κίνησης Σε Δορυφορικά Συστήματα

Καραπανταζής¹,

Karapantazis²

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To antikeÐmeno aut c thc didaktorik c diatrib c apoteleÐ h melèth teqnik¸n diaqeÐrishc thc thlepikoinwniak c kÐnhshc se doruforik sust mata. H melèth estizetai se dÔo kathgorÐec susthmtwn, ta mh gewstatik doruforik sust mata kai ta stratosfairik sust mata, ta opoÐa anamènetai na paÐxoun èna shmantikì kai poluprìswpo rìlo sta mellontik thlepikoinwniak sust mata. H diaqeÐrish thc thlepikoinwniak c kÐnhshc eÐnai Ôyisthc shmasÐac se aut ta sustmata, lìgw tou gegonìtoc ìti oi pìroi twn susthmtwn aut¸n eÐnai periorismènoi. Arqik melettai to prìblhma tou elègqou apodoq c kai metagwg c kl sewn se mh gewstatik doruforik sust mata kai proteÐnontai pènte nèoi algìrijmoi pou aposkopoÔn sthn apodotikìterh diaqeÐrish twn pìrwn tou sust matoc. Oi algìrijmoi autoÐ parousizoun polÔ jetik qarakthristik, uper-ter¸ntac twn pio gnwst¸n algorÐjmwn pou èqoun protajeÐ mèqri s mera. EpÐshc, anaptÔqjhke èna analutikì montèlo pou epitrèpei thn axiolìghsh thc apìdoshc orismènwn algorÐjmwn, tou opoÐou h axiopistÐa elègqetai kai epibebai¸netai mèsw prosomoi¸sewn. Sth sunèqeia exetzetai to prìblhma thc dromolìghshc se mh gewstatik doruforik dÐktua. H dromolìghsh se aut ta sust mata apoteleÐ mÐa prìklhsh lìgw thc metaballìmenhc topologÐac tou sust matoc. Parousizontai dÔo prwtìkolla dromolìghshc ta opoÐa eisgoun thn ènnoia thc dromolìghshc kat' aÐthsh se autoÔ tou eÐdouc ta sust mata. Ta jetik qarakthristik twn prwtokìllwn aut¸n apokalÔptontai mèsw thc sÔgkris c touc me touc pio gnwstoÔc algorÐjmouc pou èqoun protajeÐ sth bibliografÐa. To endiafèron met epikentr¸netai sta stratosfairik sust mata kai eidikìtera se sust mata pou qrhsimopoioÔn thn teqnik pollapl c prìsbashc me diaÐresh k¸dika eureÐac z¸nhc. Melettai h qwrhtikìthta aut¸n twn susthmtwn lambnontac upìyh ton atel èlegqo isqÔoc. Tèloc, proteÐnetai mÐa nèa teqnik elègqou apodoq c kai metagwg c kl sewn kai parousizontai ta apotelèsmata thc sÔgkris c thc me mÐa apì tic pio gnwstèc teqnikèc pou èqoun protajeÐ èwc s mera.

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Performance evaluation of LEO satellite constellations with inter-satellite links under self-similar and Poisson traffic

Cited by 20 publications

References 5 publications

An Analysis and Computation of Optimum Earth Geographical Coverage for Global Satellite Communications

An Analysis and Computation of Optimum Earth Geographical Coverage for Global Satellite Communications

Interlink and coverage analysis for small satellite constellations

Διαχείριση Τηλεπικοινωνιακής Κίνησης Σε Δορυφορικά Συστήματα

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