Abstract
Subject to other constraints such as economic costs, limited ground network coverage and insufficient network service capabilities in remote areas have resulted in some unloading requests being rejected. In this paper, the satellite network is used as the supplement of the terrestrial network, and the satellite-ground fusion multi-layer MEC network is constructed to study the offloading strategy and resource allocation for multi-type tasks. Firstly, the priority of task unloading is divided, and then the optimization function is constructed with the goal of minimizing the system overhead, and the improved tabu search algorithm is used to solve the problem. Finally, the feasibility and superiority of the algorithm are verified by experimental simulation.
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