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In the area of full duplex (FD)-enabled small cell networks, limited workshave been done on consideration of cache and mobile edge communication (MEC).In this paper, a virtual FD-enabled small cell network with cache and MEC isinvestigated for two heterogeneous services, high-data-rate service andcomputation-sensitive service. In our proposed scheme, content caching and FDcommunication are closely combined to offer high-data-rate services without thecost of backhaul resource. Computing offloading is conducted to guarantee thedelay requirement of users. Then we formulate a virtual resource allocationproblem, in which user association, power control, caching and computingoffloading policies and resource allocation are jointly considered. Since theoriginal problem is a mixed combinatorial problem, necessary variablesrelaxation and reformulation are conducted to transfer the original problem toa convex problem. Furthermore, alternating direction method of multipliers(ADMM) algorithm is adopted to obtain the optimal solution. Finally, extensivesimulations are conducted with different system configurations to verify theeffectiveness of the proposed scheme.

Heterogeneous Services Provisioning in Small Cell Networks with Cache and Mobile Edge Computing