Reinforcement Learning Based Latency Minimization in Secure NOMA-MEC Systems With Hybrid SIC

نویسندگان

چکیده

In this paper, physical layer security (PLS) in a non-orthogonal multiple access (NOMA)-based mobile edge computing (MEC) system is investigated, where hybrid successive interference cancellation (SIC) decoding considered. Specifically, users intend to complete confidential tasks with the help of MEC server, while an eavesdropper attempts intercept offloaded tasks. By jointly designing computational resource allocation, task assignment, and power latency minimization problem formulated. Based on interactions between local time processing time, closed-from solutions allocation assignment are derived. After that, strategy selection mechanism established select offloading strategies based corresponding conditions. Moreover, according analysis SIC decoding, conditions different orders secure NOMA networks Furthermore, reinforcement learning algorithm proposed solve problems for OMA strategies. This work extended multi-user scenario, which matching-based formulated sub-channel problem. Simulation results indicate that: i) solution can significantly reduce provide dynamic various scenarios; ii) outperform other considered system.

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ژورنال

عنوان ژورنال: IEEE Transactions on Wireless Communications

سال: 2023

ISSN: ['1536-1276', '1558-2248']

DOI: https://doi.org/10.1109/twc.2022.3194685