Robust Resource Management for Mission-Critical in-Factory Subnetworks Under External Interference

The concept of subnetworks has been recently identified as a key component of 6 G, enabling mission-critical services with hyper-reliability. In this paper, we address the challenges posed by both inter-subnetwork interference and external interference in hyper-dense and dynamic industrial environments. We focus on in-factory subnetworks for industrial wireless control applications and propose an advanced frequency-power resource allocation scheme using Gradient Descent-based Resource Allocation (GDRA). The proposed GDRA scheme efficiently mitigates interference while optimizing resource allocation. We evaluate the performance of the proposed scheme and compare it with state-of-the-art approaches, demonstrating significant improvements in spectral efficiency and reliability.