Improving Security in Power Line Communication Networks Using OFDMA Technique in the Presence of Multiple Users and Eavesdroppers

Document Type : Original Article

Authors

1 Assistant Professor, Electrical Engineering Department, Faculty of Modern Technologies Engineering, Amol University of Special Modern Technologies, Amol, Iran

2 MSc. Student of Telecommunication Network Engineering, Faculty of Modern Technologies Engineering, Amol University of Special Modern Technologies, Amol, Iran

10.22091/jemsc.2025.11503.1212

Abstract

In the present era, given the rapid growth of communication technologies and the need for smart networks, novel techniques such as Power Line Communication (PLC) and Orthogonal Frequency Division Multiplexing (OFDM) have been introduced as effective solutions for improving data transmission security and reducing infrastructure costs. This paper examines communication systems based on power lines using Orthogonal Frequency Division Multiple Access (OFDMA) techniques, which play a crucial role in network management, with the aim of enhancing data transmission security and minimizing interference effects. To evaluate the proposed system model, an optimization problem is formulated and analyzed using mathematical optimization models and the NOMAD and CVX tools in MATLAB. The analysis focuses on key performance parameters, including the number of subcarriers and users, distance, data rate constraints, total power, and noise. Therefore, to analyze the proposed system model, comprehensively, we investigate the minimum required secrecy rate for users in the presence of eavesdroppers. The optimization results demonstrate a significant improvement in the performance of PLC-based communication systems and an increase in data transmission rates.

Keywords

References

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