Journal
AD HOC NETWORKS
Volume 152, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.adhoc.2023.103305
Keywords
Internet of Vehicles; Content caching; Multi-Agent Deep Reinforcement Learning; Optimal policy; PPO; MAPPO
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In this paper, a multi-agent deep reinforcement learning framework is proposed to design an optimal caching strategy for the Internet of Vehicles (IoV). The framework aims to incentivize sharing caching resources while minimizing errors in estimating content needs.
In the Internet of Vehicles (IoV), multiple applications and multimedia services are deployed to enhance the quality of traveling experienced by passengers. These software components ingest heterogeneous multimedia content (e.g., streams, safety information, etc.) acquired through the Internet. However, the high mobility constraints and time-variant dynamics of the IoV may delay the acquisition process. Caching lowers acquisition delays of the content by storing requested content in the vicinity of its consumers. We propose a Multi-Agent Deep Reinforcement Learning (MADRL) based framework to design an optimal caching strategy for IoVs. The framework objective is to incentivize sharing caching resources while minimizing errors in estimating content needs. Extensive simulation results with different system parameters demonstrate the efficiency of the proposed solution.
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