Performance Evaluation of Non Orthogonal Multiple Access (NOMA) with digital modulation schemes

Abstract

Non Orthogonal Multiple Access (NOMA) is
new significant research area, as it gives novel idea of
multiplexing the communication channels on the same
frequency and time slot , which can present revolutionary
outcomes.
The general idea of (NOMA) is based on using
Successive Interface Cancelling (SIC) , where each user of
the channel is distinguished by its unique power level, and
then all the users are modulated/demodulated in certain
order.
In this study, many experiments are run to examine
NOMA with digital modulation schemes, such as ASK, PSK,
FSK, QPSK, and 8 QAM. MATLAB codes are built to
perform each experiment.
According to the performed simulation, 8-QAM has the
lowest Bit Error Rate (BER).