π€ AI Summary
To address the challenge of dynamic SINR prediction under mobile obstacles and transient interference in Industry 4.0, this paper proposes Evo-WISVAβa lightweight, two-dimensional radio environment generative digital twin architecture. The method integrates an attention-driven latent memory module with a generation-prediction co-optimization mechanism, synergistically combining a memory-augmented variational autoencoder and ConvLSTM for end-to-end spatiotemporal feature modeling. A jointly designed loss function enhances generalization to unseen highly dynamic scenarios and improves contextual awareness. Experimental results on a high-fidelity simulation dataset demonstrate a 47.6% reduction in average reconstruction error. Moreover, Evo-WISVA enables real-time inference under tenfold dynamic complexity, delivering high-accuracy, ultra-low-latency channel predictions essential for ultra-reliable low-latency communication (URLLC).
π Abstract
Accurate and real-time prediction of wireless channel conditions, particularly the Signal-to-Interference-plus-Noise Ratio (SINR), is a foundational requirement for enabling Ultra-Reliable Low-Latency Communication (URLLC) in highly dynamic Industry 4.0 environments. Traditional physics-based or statistical models fail to cope with the spatio-temporal complexities introduced by mobile obstacles and transient interference inherent to smart warehouses. To address this, we introduce Evo-WISVA (Evolutionary Wireless Infrastructure for Smart Warehouse using VAE), a novel synergistic deep learning architecture that functions as a lightweight 2D predictive digital twin of the radio environment. Evo-WISVA integrates a memory-augmented Variational Autoencoder (VAE) featuring an Attention-driven Latent Memory Module (LMM) for robust, context-aware spatial feature extraction, with a Convolutional Long Short-Term Memory (ConvLSTM) network for precise temporal forecasting and sequential refinement. The entire pipeline is optimized end-to-end via a joint loss function, ensuring optimal feature alignment between the generative and predictive components. Rigorous experimental evaluation conducted on a high-fidelity ns-3-generated industrial warehouse dataset demonstrates that Evo-WISVA significantly surpasses state-of-the-art baselines, achieving up to a 47.6% reduction in average reconstruction error. Crucially, the model exhibits exceptional generalization capacity to unseen environments with vastly increased dynamic complexity (up to ten simultaneously moving obstacles) while maintaining amortized computational efficiency essential for real-time deployment. Evo-WISVA establishes a foundational technology for proactive wireless resource management, enabling autonomous optimization and advancing the realization of predictive digital twins in industrial communication networks.