arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2012.14137cs.MAcs.AIcs.LG
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面向年龄敏感移动边缘计算的联邦多Agent Actor-Critic学习

Federated Multi-Agent Actor-Critic Learning for Age Sensitive Mobile Edge Computing

Beijing National Research Center for Information Science and Technology(北京信息科学与技术国家研究中心);Tsinghua University(清华大学);Hong Kong University of Science and Technology(香港科技大学);Pengcheng Lab(鹏城实验室)

Zheqi Zhu, Shuo Wan, Pingyi Fan, Khaled B. Letaief

摘要:

作为一种新兴技术,移动边缘计算(MEC)为各种分布式通信计算系统(如工业物联网(IoT),车载通信,智慧城市等)引入了一种新的处理方案。在这项工作中,我们主要关注MEC系统的实时性,其中数据和计算任务的新鲜度非常重要。首先,我们建立了一类年龄敏感的MEC模型,并定义了兴趣的平均信息年龄(AoI)最小化问题。然后,提出了一种新的基于策略的多智能体深度强化学习(RL)框架,称为异构多智能体演员评论家(H-MAAC),作为一个范例,在所研究的MEC系统,其中边缘设备和中央控制器通过自己的观察学习的交互策略的联合协作。为了提高系统的性能,我们将边缘联邦学习模式引入到多智能体协作中,从理论上保证了学习收敛的优势,并开发了相应的在线算法。据我们所知,这是第一个联合MEC协作算法,结合了边缘联邦模式与多智能体演员-评论家强化学习。此外,我们评估所提出的方法,并将其与经典的基于RL的方法进行比较。结果表明,该框架不仅在平均系统年龄上优于基线,而且提高了训练过程的稳定性。此外,仿真结果为边缘联邦协作下的系统设计提供了一些创新的视角。

英文摘要:

As an emerging technique, mobile edge computing (MEC) introduces a new processing scheme for various distributed communication-computing systems such as industrial Internet of Things (IoT), vehicular communication, smart city, etc. In this work, we mainly focus on the timeliness of the MEC systems where the freshness of the data and computation tasks is significant. Firstly, we formulate a kind of age-sensitive MEC models and define the average age of information (AoI) minimization problems of interests. Then, a novel policy based multi-agent deep reinforcement learning (RL) framework, called heterogeneous multi-agent actor critic (H-MAAC), is proposed as a paradigm for joint collaboration in the investigated MEC systems, where edge devices and center controller learn the interactive strategies through their own observations. To improves the system performance, we develop the corresponding online algorithm by introducing an edge federated learning mode into the multi-agent cooperation whose advantages on learning convergence can be guaranteed theoretically. To the best of our knowledge, it's the first joint MEC collaboration algorithm that combines the edge federated mode with the multi-agent actor-critic reinforcement learning. Furthermore, we evaluate the proposed approach and compare it with classical RL based methods. As a result, the proposed framework not only outperforms the baseline on average system age, but also promotes the stability of training process. Besides, the simulation results provide some innovative perspectives for the system design under the edge federated collaboration.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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