Capacity evaluation of a land mobile satellite system utilizing multiple element antennas

  • Authors:

  • Nektarios Moraitis;Argyris Kyriazos;Philip Constantinou;Demosthenes Vouyioukas

  • Affiliations:

  • Institute of Communications and Computer Systems, National Technical University of Athens, Zografou, Athens, Greece;Institute of Communications and Computer Systems, National Technical University of Athens, Zografou, Athens, Greece;Institute of Communications and Computer Systems, National Technical University of Athens, Zografou, Athens, Greece;Dept. of Information and Communication Systems Engineering, University of the Aegean, Samos, Greece

  • Venue:
  • ICC'09 Proceedings of the 2009 IEEE international conference on Communications
  • Year:
  • 2009

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Abstract

Land Mobile Satellite (LMS) systems can exploit multiple-input-multiple-output (MIMO) techniques in order to achieve high transmission rates. This paper evaluates theoretically the capacity of single-input-multiple-output (SIMO) system utilizing uniform linear arrays at the receiver terminal for satellite applications. The theoretical study is performed at three different frequency bands. Sufficient capacities are achieved varying between 5 and 6.2 b/s/Hz at L and S bands being almost independent from the elevation angle. In Ku band the capacity is highly variable with the elevation angle, taking values between 2 and 5.9 b/s/Hz, whereas the maximum capacity values are observed in a blocked environment. At L and S bands the capacity is uncorrelated with distance for element spacing up to 1.5 cm and varies between 5.5 and 6 b/s/Hz. In Ku band the capacity is highly variable with the element spacing and maximizes for distances between 1 and 1.5 cm.