Pattern Division Multiple Access (PDMA) is a novel non-orthogonal multiple access scheme proposed to meet the diverse demands on high capacity and large number of connections in the fifth generation (5G) wireless networks. PDMA uses the characteristic pattern to define the sparse mapping from data to a group of resources, and the sparsity of the pattern gives impacts on the capacity performance and detection complexity. In this paper, we considered the pattern assignment and power allocation in downlink PDMA system. The Joint Pattern assignment and Power Allocation (JPPA) scheme based on the optimum Iterative Water-Filling (IWF) algorithm was proposed to optimize the total throughput of all users. The simulation results demonstrated that the proposed JPPA scheme can improve the sum throughput significantly, compared to the Random Pattern assignment and IWF Power Allocation (RPPA) scheme.


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    Title :

    Joint Pattern Assignment and Power Allocation in PDMA


    Contributors:
    Zeng, Jie (author) / Liu, Bei (author) / Su, Xin (author)


    Publication date :

    2017-09-01


    Size :

    398071 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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