Stacked Auto Encoder Based Deep Reinforcement Learning for Online Resource Scheduling in Large-Scale MEC Networks

• URL: http://arxiv.org/abs/2001.09223v2
• Date: Tue, 14 Apr 2020 21:47:24 GMT
• Title: Stacked Auto Encoder Based Deep Reinforcement Learning for Online Resource Scheduling in Large-Scale MEC Networks
• Authors: Feibo Jiang, Kezhi Wang, Li Dong, Cunhua Pan, Kun Yang
• Abstract summary: An online resource scheduling framework is proposed for minimizing the sum of weighted task latency for all the Internet of things (IoT) users. A deep reinforcement learning (DRL) based solution is proposed, which includes the following components. A preserved and prioritized experience replay (2p-ER) is introduced to assist the DRL to train the policy network and find the optimal offloading policy.
• Score: 44.40722828581203
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: An online resource scheduling framework is proposed for minimizing the sum of weighted task latency for all the Internet of things (IoT) users, by optimizing offloading decision, transmission power and resource allocation in the large-scale mobile edge computing (MEC) system. Towards this end, a deep reinforcement learning (DRL) based solution is proposed, which includes the following components. Firstly, a related and regularized stacked auto encoder (2r-SAE) with unsupervised learning is applied to perform data compression and representation for high dimensional channel quality information (CQI) data, which can reduce the state space for DRL. Secondly, we present an adaptive simulated annealing based approach (ASA) as the action search method of DRL, in which an adaptive h-mutation is used to guide the search direction and an adaptive iteration is proposed to enhance the search efficiency during the DRL process. Thirdly, a preserved and prioritized experience replay (2p-ER) is introduced to assist the DRL to train the policy network and find the optimal offloading policy. Numerical results are provided to demonstrate that the proposed algorithm can achieve near-optimal performance while significantly decreasing the computational time compared with existing benchmarks.

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