Personal Satellite Services. Third International ICST Conference, PSATS 2011, Malaga, Spain, February 17-18, 2011, Revised Selected Papers

Research Article

Interference Management versus Interference Cancellation: SATCOM Case

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  • @INPROCEEDINGS{10.1007/978-3-642-23825-3_24,
        author={Lei Jiang and Maria-Angeles V\^{a}zquez-Castro},
        title={Interference Management versus Interference Cancellation: SATCOM Case},
        proceedings={Personal Satellite Services. Third International ICST Conference, PSATS 2011, Malaga, Spain, February 17-18, 2011, Revised Selected Papers},
        proceedings_a={PSATS},
        year={2012},
        month={5},
        keywords={Multibeam satellite resource allocation interference management interference cancellation},
        doi={10.1007/978-3-642-23825-3_24}
    }
    
  • Lei Jiang
    Maria-Angeles Vázquez-Castro
    Year: 2012
    Interference Management versus Interference Cancellation: SATCOM Case
    PSATS
    Springer
    DOI: 10.1007/978-3-642-23825-3_24
Lei Jiang1,*, Maria-Angeles Vázquez-Castro1,*
  • 1: Universitat Autónoma de Barcelona
*Contact email: jiang.lei@uab.es, angeles.vazquez@uab.es

Abstract

Interference management and interference cancellation are addressed in the satellite communication (SATCOM) system. We first introduce the two options for a multibeam payload: flexible (FLEX) where allocation is fully flexible in the frequency domain, and conventional on which beamforming (BF) is applied. Further, two optimization problems are proposed, P1: spectral mask vector design and power allocation in the FLEX SATCOM system by interference management, and P2: BF weighting vector design and power allocation in the BF SATCOM system by interference cancellation. Specifically, we provide a resource allocation algorithm for each system. The performance of the resource allocation algorithm is evaluated with asymmetrical traffic distribution models. The numerical results show that, by using interference cancellation, BF system with full frequency reuse provides the best performance. For the FLEX system, the bandwidth can be utilized more efficiently with larger frequency reuse factor and smaller bandwidth granularity.