Wireless and Satellite Systems. 8th International Conference, WiSATS 2016, Cardiff, UK, September 19-20, 2016, Proceedings

Research Article

Interference Mitigation for Multi Spot Beam Satellite Communication Systems Incorporating Spread Spectrum

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  • @INPROCEEDINGS{10.1007/978-3-319-53850-1_16,
        author={Abdulkareem Karasuwa and Jon Eastment and Ifiok Otung},
        title={Interference Mitigation for Multi Spot Beam Satellite Communication Systems Incorporating Spread Spectrum},
        proceedings={Wireless and Satellite Systems. 8th International Conference, WiSATS 2016, Cardiff, UK, September 19-20, 2016, Proceedings},
        proceedings_a={WISATS},
        year={2017},
        month={6},
        keywords={High throughput satellite Frequency reuse Multi spot beam Co-channel interference Precoding Spread spectrum},
        doi={10.1007/978-3-319-53850-1_16}
    }
    
  • Abdulkareem Karasuwa
    Jon Eastment
    Ifiok Otung
    Year: 2017
    Interference Mitigation for Multi Spot Beam Satellite Communication Systems Incorporating Spread Spectrum
    WISATS
    Springer
    DOI: 10.1007/978-3-319-53850-1_16
Abdulkareem Karasuwa1,*, Jon Eastment2,*, Ifiok Otung1,*
  • 1: University of South Wales
  • 2: STFC Rutherford Appleton Laboratory
*Contact email: abdulkareem.karasuwa@southwales.ac.uk, jon.eastment@stfc.ac.uk, ifiok.otung@southwales.ac.uk

Abstract

Nonlinear precoding techniques have robust transmit power stability and achieve superior interference suppression when compared to their linear counterparts. Tomlinson-Harashima Precoding (THP) is a suboptimal version of Costa’s well-known work on writing on dirty paper (DPC). Implementing these precoding techniques in a multi spot beam satellite communications system that employs frequency reuse can significantly reduce co-channel interference (CCI). In this paper, we investigate and compare the performance of linear and nonlinear precoding techniques on the forward link of a multiple spot beam satellite link. In addition, we examine the potential benefits of integrating the novel spread spectrum (SS) technique with the existing precoding techniques. The new system’s performance is evaluated and compared with that of standard precoding techniques, and the benefits of incorporating SS are weighed against the extra bandwidth requirements.