Abstract
Undoubtedly, in the highly competitive scene between network service providers, the quality of service and application experience of the mobile users are the cornerstones of competitiveness. Thus, to reduce the content access latency for their customers, network service providers or tenants normally provide caching service via edge computing. We postulate that cache sharing among multiple tenants could be a win-win concept since it can increase overall fair allocation of resources. However, cache sharing between tenants need to be carefully designed in order to provide cache allocation policies so that no individual tenant utility is penalized.;AB@We address this challenge by modeling the mobility-aware cache sharing problem as a Nash bargaining game. Based on its solution, we derive a sharing-based collaborative cache allocation scheme that considers both performance and fairness. Insights from simulation results reveal that as the variability between tenants due to congestion episodes increase the benefits of such collaboration schemes becomes more prominent.