کنفرانس مهندسی برق ایران

صفحه اصلی / سی و چهارمین کنفرانس بین المللی مهندسی برق

ProCAVE: A Self-Adaptive, Full-Lifecycle Edge Caching Framework for Video Streaming via Predictive Bandwidth Estimation and Preference-Aware Deep Reinforcement Learning

نویسندگان :

Yeganeh Chatri¹ Behzad Akbari² Foad Ghaderi³ Pejman Goudarzi⁴

1- دانشگاه تربیت مدرس تهران 2- دانشگاه تربیت مدرس تهران 3- دانشگاه تربیت مدرس تهران 4- پژوهشگاه ارتباطات و فناوری اطلاعات

کلمات کلیدی :

HTTP adaptive streaming،Edge caching،Deep reinforcement learning،Bandwidth prediction،Transformer،Quality of experience (QoE)

چکیده :

The growing demand for mobile video streaming requires edge delivery systems that adapt efficiently to rapid network fluctuations and diverse user preferences. Existing approaches such as FlyCache rely on reactive ABR heuristics and loosely coupled cache policies, limiting their responsiveness and coordination under real-world wireless dynamics. We propose \textbf{ProCAVE}(Proactive Caching with Adaptive Video Experience), a self-adaptive DRL-based framework that unifies predictive bandwidth modeling, proactive bitrate selection, and preference-aware cache control. ProCAVE employs: (i) a lightweight Transformer for short-term throughput forecasting; (ii) a PPO-driven ABR agent; and (iii) a DDPG-based continuous cache controller operating on a high-dimensional global state. Experiments using \textit{MovieLens} preference traces and \textit{Ghent 4G} bandwidth measurements show that ProCAVE improves byte hit rate, reduces backhaul load, and enhances QoE compared with FlyCache and other baselines. These results highlight the benefits of predictive, DRL-coordinated control for efficient and user-centric edge video delivery.