Investigation Of The Linear Dispersion Coding Scheme And Non-Orthogonal Multiple Access Technology For The 5g Communication Network

Abstract

The 5G and beyond networks requires high data transmission speed, low latency, massive IoT connectivity, increase in base station capacity, and perceived QoS. Nonorthogonal multiple access (NOMA) and the linear dispersion coding (LDC) techniqueare the contenders to attain the requirements of 5G and beyond networks. This paper discusses the technical view and presents the behavior of the NOMA and LDC in the multiple antenna communication systems. Presenting the basic principles of power-domain NOMA, reviewing the various objectives of NOMA, discuss uplink and downlink NOMA and then, realizing the behavior of the NOMA system. This work realizes the LDC scheme using a linear algebraic coding strategy.Furthermore, the simulation result shows that the NOMA can achieve high outage probability, high system capacity at high SNR. Result also shows that the LDC outperforms the basic alamoutiSTBC and also the optimal coefficient LDC can improve the BER performance at high SNR with the several order PSK modulation techniques for the multiple antenna wireless communication systems.