Cross-network transferable neural models for WLAN interference estimation

• URL: http://arxiv.org/abs/2211.14026v1
• Date: Fri, 25 Nov 2022 11:01:43 GMT
• Title: Cross-network transferable neural models for WLAN interference estimation
• Authors: Danilo Marinho Fernandes, Jonatan Krolikowski, Zied Ben Houidi, Fuxing Chen, Dario Rossi
• Abstract summary: In this paper, we adopt a principled approach to interference estimation in robustnesss. We first use real data to characterize the factors that impact it, and derive a set of relevant synthetic workloads. We find, unsurprisingly, that Graph Conalvolution Networks (GCNs) yield the best performance overall.
• Score: 8.519313977400735
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Airtime interference is a key performance indicator for WLANs, measuring, for a given time period, the percentage of time during which a node is forced to wait for other transmissions before to transmitting or receiving. Being able to accurately estimate interference resulting from a given state change (e.g., channel, bandwidth, power) would allow a better control of WLAN resources, assessing the impact of a given configuration before actually implementing it. In this paper, we adopt a principled approach to interference estimation in WLANs. We first use real data to characterize the factors that impact it, and derive a set of relevant synthetic workloads for a controlled comparison of various deep learning architectures in terms of accuracy, generalization and robustness to outlier data. We find, unsurprisingly, that Graph Convolutional Networks (GCNs) yield the best performance overall, leveraging the graph structure inherent to campus WLANs. We notice that, unlike e.g. LSTMs, they struggle to learn the behavior of specific nodes, unless given the node indexes in addition. We finally verify GCN model generalization capabilities, by applying trained models on operational deployments unseen at training time.

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