Pattern matrix design of PDMA for 5G UL applications

Abstract

Pattern division multiple access (PDMA), which is a novel non-orthogonal multiple access (NOMA), has been proposed to address the challenges of massive connectivity and higher spectral efficiency for fifth generation (5G) mobile network. The performance of PDMA mainly depends on the design of PDMA pattern matrix. In this paper, pattern matrix design of PDMA for 5G uplink (UL) applications in massive machine type communication (mMTC) and enhanced mobile broadband (eMBB) deployment scenarios are studied. The design criteria and examples for application in UL mMTC and UL eMBB are investigated. The performance of the PDMA pattern matrix is analyzed with the discrete constellation constrained capacity (CC-Capacity), and verified by Monte Carlo simulation. The simulation results show that the preferred PDMA pattern matrix can achieve good performance with different overloading factors (OF).