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Transfer Reinforcement Learning for Adaptive Task Offloading Over Distributed Edge Clouds
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DOI：10.1109/TCC.2022.3192560.png)
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In the big data era, resource-constrained mobile devices generate an overwhelmingly large amount of data with complex tasks that demand distributed execution. Offloading computation-intensive tasks to nearby edge clouds is promising to solve this problem. However, mobile end devices cannot handle heterogeneous or delay-sensitive tasks. These end devices are also energy constrained with weak adaptability to environment changes. To address and tackle these problems, we present a two-module transfer reinforcement learning (TRL) framework for adaptive task offloading. A domain adaptation module is used to align heterogeneous characteristics of mobile devices. The TRL makes offloading decisions with a deep reinforcement learning (DRL) module. We evaluate the performance of TRL through real-world experiments on edge clouds. Our experiment results show that TRL reduces the task processing time by a factor of 20% from using three well known DRL methods. Our method achieved (15.4 similar to 40)% reduction in task drop rate over these methods. With domain adaptation, the TRL results in (50 similar to 80)% reduction in model convergence time. These advantages in using the TRL framework make it appealing in real-life edge computing applications.
Keyword:
Task analysis
Cloud computing
Training
Edge computing
Adaptation models
Computational modeling
Artificial intelligence
Artificial intelligence
domain adaptation
edge computing
reinforcement learning
and task offloading
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I
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5
论文数:
1.9K
被引数:
4.3K
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