Decentralized Collaborative Caching-based Virtual Reality for 5G and Beyond

Multi-access edge computing (MEC) is witnessed to be an integral part of emerging augmented reality (AR) / virtual reality (VR) applications. These applications require contents from the cloud, thus suffer from high latency that is not desirable. To address this issue, one can store the frequently requested content at the MEC server. However, MEC servers have limited computing capabilities. Additionally, there are significant variations in a number of requests from the MEC server. Therefore, we propose collaborative edge caching. Our collaborative edge caching will serve the end-users in collaboration to fully exploit the available caching resources at the network edge. We derive optimization scheme based on the alternating direction method of multipliers(ADMM). Finally, we perform numerical evaluations to demonstrate the effectiveness of our proposed scheme.