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- W3021710439 abstract "In mobile edge computing systems, an edge node may have a high load when a large number of mobile devices offload their tasks to it. Those offloaded tasks may experience large processing delay or even be dropped when their deadlines expire. Due to the uncertain load dynamics at the edge nodes, it is challenging for each device to determine its offloading decision (i.e., whether to offload or not, and which edge node it should offload its task to) in a decentralized manner. In this work, we consider non-divisible and delay-sensitive tasks as well as edge load dynamics, and formulate a task offloading problem to minimize the expected long-term cost. We propose a model-free deep reinforcement learning-based distributed algorithm, where each device can determine its offloading decision without knowing the task models and offloading decision of other devices. To improve the estimation of the long-term cost in the algorithm, we incorporate the long short-term memory (LSTM), dueling deep Q-network (DQN), and double-DQN techniques. Simulation results with 50 mobile devices and five edge nodes show that the proposed algorithm can reduce the ratio of dropped tasks and average task delay by 86.4%-95.4% and 18.0%-30.1%, respectively, when compared with several existing algorithms." @default.
- W3021710439 created "2020-05-13" @default.
- W3021710439 creator A5003037377 @default.
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- W3021710439 date "2020-04-10" @default.
- W3021710439 modified "2023-09-23" @default.
- W3021710439 title "Deep Reinforcement Learning for Task Offloading in Mobile Edge Computing Systems" @default.
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- W3021710439 doi "https://doi.org/10.48550/arxiv.2005.02459" @default.
- W3021710439 hasPublicationYear "2020" @default.
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