Distributed Link Sparsification for Scalable Scheduling Using Graph Neural Networks (Journal Version)
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866916937154428928 |
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| author | Zhao, Zhongyuan Verma, Gunjan Swami, Ananthram Segarra, Santiago |
| author_facet | Zhao, Zhongyuan Verma, Gunjan Swami, Ananthram Segarra, Santiago |
| contents | In wireless networks characterized by dense connectivity, the significant signaling overhead generated by distributed link scheduling algorithms can exacerbate issues like congestion, energy consumption, and radio footprint expansion. To mitigate these challenges, we propose a distributed link sparsification scheme employing graph neural networks (GNNs) to reduce scheduling overhead for delay-tolerant traffic while maintaining network capacity. A GNN module is trained to adjust contention thresholds for individual links based on traffic statistics and network topology, enabling links to withdraw from scheduling contention when they are unlikely to succeed. Our approach is facilitated by a novel offline constrained {unsupervised} learning algorithm capable of balancing two competing objectives: minimizing scheduling overhead while ensuring that total utility meets the required level. In simulated wireless multi-hop networks with up to 500 links, our link sparsification technique effectively alleviates network congestion and reduces radio footprints across four distinct distributed link scheduling protocols. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_05447 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Distributed Link Sparsification for Scalable Scheduling Using Graph Neural Networks (Journal Version) Zhao, Zhongyuan Verma, Gunjan Swami, Ananthram Segarra, Santiago Networking and Internet Architecture Discrete Mathematics Machine Learning Signal Processing 05-08 C.2.1; I.2.8; G.2.2 In wireless networks characterized by dense connectivity, the significant signaling overhead generated by distributed link scheduling algorithms can exacerbate issues like congestion, energy consumption, and radio footprint expansion. To mitigate these challenges, we propose a distributed link sparsification scheme employing graph neural networks (GNNs) to reduce scheduling overhead for delay-tolerant traffic while maintaining network capacity. A GNN module is trained to adjust contention thresholds for individual links based on traffic statistics and network topology, enabling links to withdraw from scheduling contention when they are unlikely to succeed. Our approach is facilitated by a novel offline constrained {unsupervised} learning algorithm capable of balancing two competing objectives: minimizing scheduling overhead while ensuring that total utility meets the required level. In simulated wireless multi-hop networks with up to 500 links, our link sparsification technique effectively alleviates network congestion and reduces radio footprints across four distinct distributed link scheduling protocols. |
| title | Distributed Link Sparsification for Scalable Scheduling Using Graph Neural Networks (Journal Version) |
| topic | Networking and Internet Architecture Discrete Mathematics Machine Learning Signal Processing 05-08 C.2.1; I.2.8; G.2.2 |
| url | https://arxiv.org/abs/2509.05447 |