Abstract
Pattern division multiple access (PDMA) is a novel non-orthogonal multiple access (NOMA) solution to the problem of massive connection and higher spectral efficiency for the fifth generation (5G) wireless networks. The performance of PDMA is determined by the gain brought by the PDMA pattern and is generally related to the inner product of the pattern. This paper first sets up the system model of uplink (UL) and downlink (DL) PDMA, and formulates the pattern matrix design principles for enhanced mobile broadband (eMBB), massive machine type communications (mMTC), and ultra-reliable and low latency communications (URLLC). In this paper, the design criteria and examples of 5G application scenarios are given, and the performance of different PDMA pattern matrices is compared and analyzed by link-level simulation. The effectiveness of the proposed PDMA pattern matrix design principles is verified by Monte Carlo simulation.
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