Layered Division Multiplexing in 5G NR

Abstract

This research work presents the implementation of Layered Division Multiplexing (LDM) in 5G New Radio. Layered-Division-Multiplexing (LDM) is basically a non orthogonal multiplexing technique which allows the data transmission in different layers with various power levels. The LDM transmitter has been modelled with two layers namely the Core layer (CL) and Enhanced layer(EL) with two different modulation schemes and various injected power level. The data streams are superimposed at different layers to form a multilayer signal with distinct features of each layer. This work analyses the BER performance and constellation diagram at the receiver for various channel models such as Additive White Gaussian Noise (AWGN) and Rayleigh. The proposed system has been implemented in MATLAB simulink and simulation results are also obtained exhibiting improvement in the system performance