We present a transmit antenna subset selection scheme for an underlay cognitive system serving multiple secondary receivers. The secondary system employs zero-forcing beamforming to nullify the interference to multiple primary users and eliminate inter-user interference to the secondary users simultaneously. Simulation results show that the proposed scheme achieves near-optimal performance with low computational complexity. Lastly, an optimal power allocation strategy is also introduced to improve the secondary network throughput.


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    Titel :

    Transmit Antenna Selection for Multi-User Underlay Cognitive Transmission with Zero-Forcing Beamforming


    Beteiligte:


    Erscheinungsdatum :

    2016-09-01


    Format / Umfang :

    177998 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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