ABSTRACT

This paper discusses the throughput of a fifth generation (5G) new radio (NR) system. The main goal of this

research is to provide and develop a pathway for improving the throughput in the 5G system by investigating and

controlling certain effective factors. The studied factors in this paper are the used modulation technique, the used

subcarrier spacing in the default Clustered Delay Line (CDL) channel and the existence of a reflector in a custom

CDL channel profile. It is found that the performance of the throughput is improved for larger subcarrier spacing

and lower-order modulation technique. The existence and position of the reflector located between the transmitter

and the receiver will be investigated relative to throughput performance in detail. Both fixed and changeable

locations of the reflectors are considered in order to reach an optimal value of throughput. The results show that

the existence of the reflector achieves a better throughput value compared to the one with no reflector. In the

presence of a reflector and at a subcarrier spacing of 30 kHz, the throughput can reach 100% of throughput at 0

dB of signal to noise ratio (SNR) compared with only 40% at 0 dB for no-reflector case.