🤖 AI Summary
To address the challenge of dynamic resource management for eMBB and URLLC services in vehicular network slicing, this paper proposes an explainable deep reinforcement learning (XRL) framework leveraging a near-real-time RAN Intelligent Controller (RIC). The method innovatively integrates Shapley values with a self-attention mechanism to enhance attribution accuracy while preserving decision latency constraints, thereby enabling high-fidelity, interpretable resource scheduling. The framework supports end-to-end slice orchestration and adaptive resource allocation under stringent QoS requirements. Experimental results demonstrate significant improvements in service assurance: URLLC QoS compliance reaches 80.13% (+2.13 percentage points), and eMBB achieves 73.21% (+1.77 percentage points). Moreover, the proposed XRL attains superior explanation fidelity compared to pure attention-based baselines, enabling real-time decision traceability and policy validation.
📝 Abstract
Effective resource management and network slicing are essential to meet the diverse service demands of vehicular networks, including Enhanced Mobile Broadband (eMBB) and Ultra-Reliable and Low-Latency Communications (URLLC). This paper introduces an Explainable Deep Reinforcement Learning (XRL) framework for dynamic network slicing and resource allocation in vehicular networks, built upon a near-real-time RAN intelligent controller. By integrating a feature-based approach that leverages Shapley values and an attention mechanism, we interpret and refine the decisions of our reinforcementlearning agents, addressing key reliability challenges in vehicular communication systems. Simulation results demonstrate that our approach provides clear, real-time insights into the resource allocation process and achieves higher interpretability precision than a pure attention mechanism. Furthermore, the Quality of Service (QoS) satisfaction for URLLC services increased from 78.0% to 80.13%, while that for eMBB services improved from 71.44% to 73.21%.