مورد إلكتروني
An assessment of different relay network topologies to improve Earth-Mars communications
| العنوان: | An assessment of different relay network topologies to improve Earth-Mars communications |
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| بيانات النشر: | 2023-04 |
| تفاصيل مُضافة: | Universitat Politècnica de Catalunya. Doctorat en Enginyeria Mecànica, Fluids i Aeronàutica Universitat Politècnica de Catalunya. Departament de Física Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions Universitat Politècnica de Catalunya. TUAREG - Turbulence and Aerodynamics in Mechanical and Aerospace Engineering Research Group Universitat Politècnica de Catalunya. GAA - Grup d'Astronomia i Astrofísica Universitat Politècnica de Catalunya. CommSensLab-UPC - Centre Específic de Recerca en Comunicació i Detecció UPC Betriu Roure, Paula Soria Guerrero, Manel Gutiérrez Cabello, Jordi Barlabe Dalmau, Antoni |
| نوع الوثيقة: | Electronic Resource |
| مستخلص: | The future of deep space communications encompasses a challenging situation where the current facilities used to communicate with different spacecraft may become saturated as a result of an increasing number of missions and their complexity. From this forecast, the present study intends to provide a solution to saturation problems through strategically-located upgradable relays for Earth-Mars communications. The foremost goal of this paper is to quantitatively uncover the potential enhancements coming from relay placement in strategic orbits between Earth and Mars. Herein, two relay configurations –a.k.a. network topologies– are analyzed: the Lagrange-relays network topology and a circular, homogeneously-distributed satellite constellation, acknowledged here as pearl constellation. The first uses the Earth-Sun system Lagrange points L3, L4 and L5 as potential locations for the relays, whilst the second defines an optimized orbit between Earth and Mars with 3 or 4 relay satellites. To aid in the analysis, the authors developed an open-sourced piece of software that obtains the link availability as well as the data rate at which two nodes may communicate, taking as a reference the Deep Space Network for Earth, and the Mars Reconnaissance Orbiter for Mars. For complex topologies with more than two communicating nodes, the software outputs the end-to-end bit rate and optimal communication route at each time step. Moreover, this product is extensible to analyze and optimize any network topology and could be adapted to be used for contact management and mission planning in the future. The results show that the network-topology proposals are an advantageous option to significantly increase the link availability of Earth-Mars communications. Nevertheless, the Direct-To-Earth link always outperforms the multi-hop path due to the limited telecommunication system’s capabilities of both the spacecraft and the relays. As a result of this, the study includes an analysis on the re Peer Reviewed Postprint (published version) |
| مصطلحات الفهرس: | Àrees temàtiques de la UPC::Física, Interstellar communication, Earth-Mars communications, Solar conjunctions, Lagrange relays, Pearl constellation, Deep Space Network, Comunicació interestel·lar, Article |
| URL: | |
| الإتاحة: | Open access content. Open access content Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0 Open Access |
| ملاحظة: | 17 p. application/pdf English |
| أرقام أخرى: | HGF oai:upcommons.upc.edu:2117/384343 Betriu, P. [et al.]. An assessment of different relay network topologies to improve Earth-Mars communications. "Acta astronautica", Abril 2023, vol. 206, p. 72-88. 0094-5765 10.1016/j.actaastro.2023.01.040 1372979197 |
| المصدر المساهم: | UNIV POLITECNICA DE CATALUNYA From OAIster®, provided by the OCLC Cooperative. |
| رقم الأكسشن: | edsoai.on1372979197 |
| قاعدة البيانات: | OAIster |
| الوصف غير متاح. |