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.
Joint Pattern Assignment and Power Allocation in PDMA
2017-09-01
398071 byte
Conference paper
Electronic Resource
English
Design of PDMA Pattern Matrix in 5G Scenarios
IEEE | 2020
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