Attention-enhanced DQN scheduling for multi-link devices in synchronous N-STR Wi-Fi 7 networks

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Date
2025-12-30
Authors
Abdelreheem, Ahmed
Sreenan, Cormac
Zahran, Ahmed H.
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Institute of Electrical and Electronics Engineers Inc.
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Abstract
WiFi 7 IEEE (802.11be) introduced Multi-Link Operation (MLO) that enables its devices to communicate over multiple links to support evolving latency-sensitive and high-throughput applications. However, MLO requires advanced scheduling algorithms to optimize the operation. This paper models WiFi 7 scheduling as a constrained Markov Decision Process that optimizes throughput, delay, latency and fairness while capturing access constraints and traffic dynamics. We also develop an attention-enhanced Rainbow Deep Q-Network (DQN) scheduling framework that combines multi-head attention, distributional Q-learning, and prioritized experience replay. Simulation results show up to 2.3× throughput improvement, 6× delay reduction, and marked gains in packet drop rate and spectral efficiency over baseline Round Robin scheduling.
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Keywords
DQN , DRL , MLO , N-STR , Wi-Fi 7 , [ComputerScience]
Citation
Abdelreheem, A, Sreenan, C & Zahran, A H 2025, Attention-enhanced DQN scheduling for multi-link devices in synchronous N-STR Wi-Fi 7 networks. in 2025 International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems (MSWiM). MSWiM 2025 - 27th International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems, Institute of Electrical and Electronics Engineers Inc., pp. 659-666, 27th International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems, MSWiM 2025, Barcelona, Spain, 27/10/25. https://doi.org/10.1109/MSWiM67937.2025.11309124
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