Joint computation offloading and data caching with delay optimization in mobile-edge computing systems
Haixia Wang, Rongpeng Li, Lu Fan, Honggang Zhang · 2017
Mobile edge computing (MEC) has recently emerged as an important paradigm to bring computation and cache resources to the edge of core networks. However, the resources of edge network are relatively limited, so it is necessary to cooperate with data center (DC) which has sufficient computational resources. In this paper, we aim at designing a computation offloading and data caching model under the joint of MEC and DC. Then, by analyzing the execution delay and transmission delay of each task, we formulate a resource-constrained delay minimization problem, and put forward a heuristic algorithm based on Genetic Algorithm (GA) and Simulated Annealing (SA). Numerical results show that our scheme outperforms the conventional schemes in various scenarios, and also verify that the proposed algorithm can converge to a superior value than the classical GA and SA algorithms.