Performance Evaluation of Multiplexed 5G-New Radio Network Services of Different Usage Scenarios

摘要

5G network use cases is characterized by the International Telecommunication Union-Radiocommunication sector (ITU-R) into three (3) major categories, namely: enhanced Mobile Broadband (eMBB), massive Machine Type Communication (mMTC) and Ultra Reliable Low Latency Communication (URLLC). It is important that 5G-NR supports heterogeneous services across the various use cases with efficient utilization of radio resources while satisfying distinct performance requirements. Hence, this article is focused on the performance evaluation of characterized 5G-NR network services, multiplexed from the three (3) major usage scenarios. These multiplexed network service use cases are classified into two, namely: eMBB-URLLC and eMBB-mMTC. Thus, the multiplexing is done by adopting the requisite channel modeling and performing new resource allocation, utilizing new coding schemes, network slicing and numerologies as defined in 3GPP releases 14, 15, and key technical reports. The simulations were carried out in MATLAB™ R2019a version environment. The results obtained were compared for key performances metrics including: - channel capacity, error rate, data rate, and spectral efficiencies. It was discovered that eMBB-URLLC has average capacity that is greater than 800 Mbps at 300m, while it is slightly above 200 Mbps at 300m from the gNb, for the eMBB-mMTC use case. The error rate is found to be lower for eMBB-URLLC and higher for eMBB-mMTC at SNR of 2dB. Data rate of about 30 Mbps and 230 Mbps at SNR of -5dB, was obtained for the eMBB-mMTC and eMBB-URLLC use cases respectively. Similarly, the spectral efficiency is lower in the eMBB-URLLC group, showing less than 15 bps/Hz/cell while in the case of eMBB-mMTC, it is relatively higher with spectral efficiency greater than 17 bps/Hz/cell.