Collaborative Edge Caching with Multiple Virtual Reality Service Providers Using Coalition Games
Chun‐Che Lin, Yao Chiang, Hung‐Yu Wei · 2023
Mobile edge computing (MEC) and 5G networks can provide ultra-low latency connections. Combining the two, caching services at the network edge can greatly reduce the delay of virtual reality (VR) and augmented reality (AR) services, enhancing the Quality of Service (QoS) for users. In this paper, we investigate an efficient collaborative service caching scheme between multiple service providers (SPs) with a game-theoretical approach. We model SPs as players who care about nothing but their profits and can form coalitions by sharing edge server resources as well as costs with other members. More than one coalition can be formed in an edge server. Our algorithm guarantees to reach a Nash equilibrium, where no one has the incentive to deviate. Simulation results show that through the proposed collaboration scheme, SPs can reach a higher profit compared to several baselines as well as previously proposed schemes.