Assoc. Prof. Dr. Hilal Hudan Nuha

Hilal Hudan Nuha (Senior Member, IEEE) received the bachelor’s degree in telecommunication engineering from the Telkom Institute of Technology (IT Telkom), Bandung, Indonesia, in 2009, the master’s degree in informatics from Telkom University, Bandung, in 2011, and the Ph.D. degree from the King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia, in 2019. In 2021, he was trusted as the Head of the Information Technology Bachelor Program, Telkom University (Tel-U). He is currently an Associate Professor with Tel-U and the Head of the Communication and Information Technology Infrastructure Research Group. His research interests include machine learning for networked sensors and network modelling.

Keynote Title: Multiaccess Techniques under IIoT Environment

Keynote Abstract:
In this study, we analyzed the performance of the Irregular Repetition Slotted ALOHA (IRSA) protocol applied to the Industrial Internet of Things (IIoT) in 5G New Radio (NR) networks. The key motivation behind using IRSA is its ability to enhance resource efficiency in scenarios with sporadic and bursty traffic, which is typical in IIoT applications. IRSA leverages multiple replicas of data packets, combined with Successive Interference Cancellation (SIC) at the receiver, to improve the chances of successful packet reception. This makes it highly effective for environments where packet transmissions are unpredictable and occur at irregular intervals. We modeled the user arrival process using a Beta distribution, which allows us to account for time-varying activity patterns of IIoT devices. The Beta distribution's flexibility in capturing different levels of user activity over time aligns well with the bursty nature of IIoT traffic.Our simulation results showed significant improvements in performance as the number of channels increased, especially for low to moderate packet ready probabilities (P = 0.2 and P = 0.5). For high packet ready probabilities (P = 1), throughput continued to improve with the addition of more channels. In terms of packet loss, we observed that, for low packet ready probability (P = 0.2), the Packet Loss Ratio (PLR) quickly decreased to zero as the number of channels increased.