International Journal of Satellite Communications and Networking

Cover image for Vol. 31 Issue 1

January/February 2013

Volume 31, Issue 1

Pages 1–50

  1. Research Articles

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    2. Research Articles
    1. You have free access to this content
      A survey of architectures and scenarios in satellite-based wireless sensor networks: system design aspects (pages 1–38)

      N. Celandroni, E. Ferro, A. Gotta, G. Oligeri, C. Roseti, M. Luglio, I. Bisio, M. Cello, F. Davoli, A. D. Panagopoulos, M. Poulakis, S. Vassaki, T. De Cola, M. A. Marchitti, Y. F. Hu, P. Pillai, S. Verma, K. Xu and G. Acar

      Article first published online: 27 NOV 2012 | DOI: 10.1002/sat.1019

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      This paper specifically addresses architectural aspects related to wireless sensor networks (WSNs) in some way connected with a satellite link, a topic that presents challenging interworking aspects. The main objective is to provide an overview of the potential role of a satellite segment in future WSNs. In this perspective, requirements of the most meaningful WSN applications have been drawn and matched to characteristics of various satellite/space systems in order to identify suitable integrated configurations.

    2. Three-dimensional radiation pattern measurement strategy for ground station antennas (pages 39–50)

      Michael Nygaard Pedersen, Jürgen Letschnik, Lars Schelde, Henrik Karstoft, Fritz Schurig and Ulrich Walter

      Article first published online: 4 DEC 2012 | DOI: 10.1002/sat.1020

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      This article describes how to measure a three-dimensional antenna radiation pattern, inspired by the seed pattern of a sunflower seed head, where the seed placements are arranged in a way that the rotational symmetry is obtained in order to compromise the circular shape of a dish antenna radiation pattern in the three-dimensional space. With this new measurement strategy a three-dimensional radiation pattern can be measured two to thirteen times faster than the best performing current strategies.