Distributed Deep Learning-based Offloading for Mobile Edge Computing Networks

This paper studies mobile edge computing (MEC) networks where multiple wireless devices (WDs) choose to offload their computation tasks to an edge server. To conserve energy and maintain quality of service for WDs, the optimization of joint offloading decision and bandwidth allocation is formulated as a mixed integer programming problem. However, the problem is computationally limited by the curse of dimensionality, which cannot be solved by general optimization tools in an effective and efficient way, especially for large-scale WDs. In this paper, we propose a distributed deep learning-based offloading (DDLO) algorithm for MEC networks, where multiple parallel DNNs are used to generate offloading decisions. We adopt a shared replay memory to store newly generated offloading decisions which are further to train and improve all DNNs. Extensive numerical results show that the proposed DDLO algorithm can generate near-optimal offloading decisions in less than one second.

Automated summary

This paper proposes a deep learning-based algorithm to solve the offloading decision problem in mobile edge computing networks. By using multiple parallel DNNs to generate offloading decisions and utilizing a shared replay memory to further train and improve DNNs, near-optimal offloading decisions can be generated quickly.