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arXiv 2409.01004cs.NI
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密集Wi-Fi部署中基于联邦深度强化学习的智能信道接入

Federated Deep Reinforcement Learning-Based Intelligent Channel Access in Dense Wi-Fi Deployments

Xinyang Du, Xuming Fang, Rong He, Li Yan, Liuming Lu, Chaoming Luo

AI总结:

本文针对密集Wi-Fi高冲突问题,提出融合联邦学习与DDPG的智能信道接入机制,并通过训练剪枝和权重聚合降低MAC时延,仿真验证其性能优于A-FRL和DRL。

摘要:

IEEE 802.11 MAC层采用带冲突避免的载波侦听多址接入(CSMA/CA)机制进行信道竞争,但密集Wi-Fi部署往往导致较高的冲突率。为解决这一问题,本文提出了一种结合联邦学习(FL)和深度确定性策略梯度(DDPG)算法的智能信道竞争接入机制。我们引入了一种训练剪枝策略和一种权重聚合算法,以提高模型效率并降低MAC时延。利用NS3-AI框架进行的仿真表明,在静态场景下,我们的方法将平均MAC时延降低了25.24%;在动态环境中,其性能分别比A-FRL和DRL提升了25.72%和45.9%。

英文摘要:

The IEEE 802.11 MAC layer utilizes the Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) mechanism for channel contention, but dense Wi-Fi deployments often cause high collision rates. To address this, this paper proposes an intelligent channel contention access mechanism that combines Federated Learning (FL) and Deep Deterministic Policy Gradient (DDPG) algorithms. We introduce a training pruning strategy and a weight aggregation algorithm to enhance model efficiency and reduce MAC delay. Using the NS3-AI framework, simulations show our method reduces average MAC delay by 25.24\% in static scenarios and outperforms A-FRL and DRL by 25.72\% and 45.9\% in dynamic environments, respectively.

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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