Inspec keywords: evolutionary computation; telecommunication computing; cache storage; 5G mobile communication; cooperative communication; integer programming

Other keywords: energy-efficient hierarchical; 5G networks; user quality-of-experience; total energy consumption; fifth-generation networks; user QoE; integer programming problem; duplicate traffic transmission; content caching policy design; energy efficiency

Subjects: Mobile radio systems; Communications computing; File organisation; Optimisation techniques; Optimisation techniques