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Online Learning for Distributed Computation Offloading in Wireless Powered Mobile Edge Computing Networks
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DOI：10.1109/TPDS.2021.3129618.png)
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摘要
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A novel paradigm named Wireless Powered Mobile Edge Computing (WP-MEC) emerges recently, which integrates Mobile Edge Computing (MEC) and Wireless Power Transfer (WPT) technologies. It enables mobile clients to both extend their computing capacities by task offloading, and charge from edge servers via energy transmission. Existing studies generally focus on the centralized design of task scheduling and energy charging in WP-MEC networks. To meet the decentralization requirement of the near-coming 6G network, we propose an online learning algorithm for computation offloading in WP-MEC networks with a distributed execution manner. Specifically, we first define the delay minimization problem by considering task deadline and energy constraints. Then, we transform it into a primal-dual optimization problem based on the Bellman equation. After that, we design a novel neural model that learns both offloading and time division decisions in each time slot to solve the formulated optimization problem. To train and execute the designed algorithm distributivity, we form multiple learning models decentralized on edge servers and they work coordinately to achieve parameter synchronization. At last, both theoretical and performance analyses show that the designed algorithm has significant advantages in comparison with other representative schemes.
Keyword:
Task analysis
Servers
Processor scheduling
Delays
Optimization
Resource management
Multi-access edge computing
Wireless powered mobile edge computing
delay minimization
distributed execution
online learning
期刊
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6
论文数:
5.2K
被引数:
1.1W
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