TD-STGT: A Spatio-Temporal Graph Transformer for Mobile Traffic Demand Forecasting

2026-09-06

AI Summary

本文提出TD-STGT模型，通过图神经网络预测细粒度移动流量需求变化，为5G和6G网络规划提供支持。

Abstract

Fine-grained mobile traffic demand forecasting is essential for long-term planning of 5G and future 6G networks, including radio upgrades, site densification, backhaul expansion, and spectrum activation. This paper proposes the Traffic Demand Spatio-Temporal Graph Transformer (TD-STGT), a graph neural forecasting framework for predicting changes in wireless mobile traffic demand across fine geographic grids. The framework uses a population-scaled demand proxy developed from crowdsourced mobile measurements and daytime population information. Experiments across five Canadian metropolitan regions show that TD-STGT achieves the best performance in forecasting grid-level demand changes, reaching a $\Delta R^2$ of 0.462 and reducing $\Delta$RMSE by 5.7\% relative to the strongest baseline. The proposed model provides a practical tool for identifying areas with increasing demand pressure and prioritizing future mobile-network capacity upgrades.

Problem

• mobile traffic demand forecasting
• 5G and 6G networks
• spatio-temporal graph

Innovation

• Spatio-Temporal Graph Transformer
• Mobile Traffic Demand Forecasting
• Crowdsourced Mobile Measurements