A Unified Framework for Communications, Computing and Caching Resources Allocation in Mobile Networks

Mobile services become more and more diversified, namely there are distinct requirements on the communications, computing and caching (3C) resources in mobile systems. Different from the traditional work that only considers one type of service, this paper proposes a unified framework which consider that the task required can be generated on BS with the mobile edge computing server, the mobile device or both of them to characterize the different kinds of services. In the proposed framework, we formulate a multi-objective programming (MOP) for minimizing the total delay while maximizing the number of executed tasks requested by the mobile devices to optimize the 3C resources of the mobile system for diverse services. Moreover, we propose a single-objective iterative algorithm (SOIA) for solving the problem, and a quick search algorithm is put forward to obtain the exact Pareto-optimal points in the scenario of single mobile device. Finally, numerical results show that the proposed algorithms have significant performance gain compared with the traditional multi-objective evolutionary algorithm (MOEA/D).