ICTACT Journal on Communication Technology

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Link Margin for Wireless Radio Communication Link


Affiliations
1 Systems Engineering Group, ISRO Satellite Centre, Bangalore, India
     

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The systematic evaluation of the link budget calculation for the satellite and terrestrial communication is presented in this article. Communication link between the satellite and earth station is dependent on various propagation and associated losses which are either constant or vary with weather conditions. Role of receiver noise, antenna pointing mechanism, atmospheric effects, slant height, interferences, bit error rate on the link margin are detailed in this article. Various equations for link budget calculation and a comparative table at various frequency bands are shown in this article which is useful for predicting link margin of LEO, GEO and Deep space missions. Tele-command, telemetry and ranging link margin at various frequencies are presented and budget analysis at Ka-band frequency performed.

Keywords

Link Budget, Margin, Atmospheric Effects, Noise, Propagation Losses, Uplink, Downlink.
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  • D.M. Pozar, “Microwave Engineering”, John Wiley and Sons, 2010.

  • S.K. Sharama, S. Chatzintos and B. Otersten, “In-line Interference Mitigation Techniques for Spectral Coexistence of GEO and NGEO Satellites”, International Journal of Satellite Communications, Vol. 34, No. 1, pp. 11-39, 2016.

  • V Sambasiva Rao, “Extend LEO Downlinks with GEO Satellites”, Available at: http://www.mwrf.com/datasheet/extend-leo-downlinks-geo-satellites-pdf-download.

  • Aderemi A. Atayero, Matthew K. Luka and Adeyemi A. Alatishe, “Satellite Link Design: A Tutorial”, International Journal of Electrical and Computer Sciences, Vol. 11, No. 4, pp. 1-6, 2011.

  • C. Haslett, “Essentials of Radio Wave Propogation”, Cambridge Wireless Essentials Series, 2008.

  • R. Ashiya, “A Regional Satellite System for Mobile Communications”, Proceedings of IEEE International Conference on Personal Wireless Communications, pp. 142-146, 1994.

  • K.N. Madhavan, D. John, A. Bhaskaranarayana,T.S. Narayan, M. Rathnakumar, V.K. Lakshmeesha and S. Pal, “TT&C Transponder for INSAT-2 Series Satellites”, IETE Technical Review, Vol. 11, No. 5, pp. 291-296, 1994.

  • W.S. Cheung and F.H. Leuvien, “Microwave Made Simple”, Artech House, 1995.

  • T.C. Barbosa,R.L. Moreno,T.C. Pereira and L.H.C. Ferreira,“ FPGA Implementation of a Reed Solomon Codec for OTNG.709 Standard with reduced Decoder Area”, Proceedings of 6th International Conference on Wireless Communications Networking and Mobile Computing, pp. 1-4, 2010.

  • Daniel Minoli, “Innovations in Satellite Communications Technology”, Wiley, 2015.

  • L.S Chuan, S.R-Tian andY.P Hon, “Ka-Band Satellite Communications Design Analysis and Optimisation”, DSTA Horizons, pp. 70-78, 2015.

  • S. Dey, D.K. Mohapatra and S.D.R.P. Archana, “An Approach to calculate the Performance and Link Budget of LEO Satellite (Iridium) for Communication Operated at frequency Range (1650-1550)MHz”, International Journal of Latest Trends in Engineering and Technology, Vol. 4, No. 4, pp. 96-103, 2014.


Abstract Views: 241

PDF Views: 4




  • Link Margin for Wireless Radio Communication Link

Abstract Views: 241  |  PDF Views: 4

Authors

Kamaljeet Singh
Systems Engineering Group, ISRO Satellite Centre, Bangalore, India
A. V. Nirmal
Systems Engineering Group, ISRO Satellite Centre, Bangalore, India
S. V. Sharma
Systems Engineering Group, ISRO Satellite Centre, Bangalore, India

Abstract


The systematic evaluation of the link budget calculation for the satellite and terrestrial communication is presented in this article. Communication link between the satellite and earth station is dependent on various propagation and associated losses which are either constant or vary with weather conditions. Role of receiver noise, antenna pointing mechanism, atmospheric effects, slant height, interferences, bit error rate on the link margin are detailed in this article. Various equations for link budget calculation and a comparative table at various frequency bands are shown in this article which is useful for predicting link margin of LEO, GEO and Deep space missions. Tele-command, telemetry and ranging link margin at various frequencies are presented and budget analysis at Ka-band frequency performed.

Keywords


Link Budget, Margin, Atmospheric Effects, Noise, Propagation Losses, Uplink, Downlink.

References