This paper considers a general multicast system in which multiple cells cooperate to serve multiple multicast groups in the same radio (i.e., time-frequency) resource. To improve the quality of service (QoS) and reduce the interference among the multicast groups, joint beamforming and power allocation among the cells are employed. By exploiting the concept of downlink-uplink duality and principal angle algorithm, an iterative approach is taken to jointly design the maximum signal-to-interference-plus-noise ratio (SINR) beamforming and power allocation under the per-cell power constraints. Simulation results demonstrate that the proposed method achieves a higher minimum SINR (hence the rate) for the multicast groups compared to the conventional single frequency network (SFN) based scheme and a semidefinite programming (SDP) based scheme in the literature.


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    Titel :

    Multicell Multicast with Joint Beamforming and Power Allocation


    Beteiligte:
    Hsu, Guan-Wen (Autor:in) / Liao, Shuyu (Autor:in) / Su, Hsuan-Jung (Autor:in) / Lin, Phone (Autor:in)


    Erscheinungsdatum :

    01.09.2015


    Format / Umfang :

    229428 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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