---
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标题: "An Asynchronous Triggered MAC Protocol for Underwater Acoustic Networks"
原文链接: "https://arxiv.org/abs/2608.10533"
发布日期: "2026-08-11"
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去重键: "https://arxiv.org/abs/2608.10533"
---

## Computer Science > Networking and Internet Architecture

## Title:An Asynchronous Triggered MAC Protocol for Underwater Acoustic Networks

Authors:[Bingwen Huangfu](https://arxiv.org/search/cs?searchtype=author&query=Huangfu,+B), [Jiani Guo](https://arxiv.org/search/cs?searchtype=author&query=Guo,+J), [Shanshan Song](https://arxiv.org/search/cs?searchtype=author&query=Song,+S), [Nan Sun](https://arxiv.org/search/cs?searchtype=author&query=Sun,+N), [Jun Liu](https://arxiv.org/search/cs?searchtype=author&query=Liu,+J)

[View PDF](https://arxiv.org/pdf/2608.10533) [HTML (experimental)](https://arxiv.org/html/2608.10533v1)

> Abstract:Time Division Multiple Access (TDMA)-based Medium Access Control (MAC) protocols have proven their practicality through extensive field trials in Underwater Acoustic Networks (UANs), attributable to their hardware-agnostic and easily implementable properties. Most existing protocols rely on a synchronized and fixed-length slot paradigm to mitigate channel contention and facilitate orderly transmissions. However, this paradigm imposes significant clock synchronization overhead in UANs with low and variable sound speed and struggles to improve scheduling flexibility. Although some protocols attempt to refine this slot paradigm (adjust the slot length to improve channel reuse efficiency or scheduling frequency), they are still constrained by the trade-off between channel utilization and scheduling complexity. To this end, this paper advocates a paradigm shift in underwater MAC design, transitioning from synchronized slot to asynchronous scheduling, and realizes it through an Asynchronous Triggered MAC (AT-MAC). AT-MAC introduces a triggered slot paradigm without time synchroniza?tion, decoupling transmission scheduling from a rigid timeline and enabling asynchronous, variable-length slots to accommodate the long and diverse propagation delays. To power this slot paradigm, AT-MAC augments conventional Multi-Agent Deep Reinforcement Learning to handle asynchronous interaction, achieving efficient coordinated channel access under partial ob?servations. It further devises a load-aware fairness guard mech?anism to enable network-wide fairness status inference solely through local overhearing, thereby guiding adaptive scheduling correction to maintain fairness. Trace-based and on-board ex?periments validate the feasibility and computational practicality of AT-MAC. Extensive simulation results further demonstrate its superiority and adaptability across various scenarios and traffic conditions.

| Subjects: | Networking and Internet Architecture (cs.NI) |
| --- | --- |
| Cite as: | [arXiv:2608.10533](https://arxiv.org/abs/2608.10533) \[cs.NI\] |
|  | (or [arXiv:2608.10533v1](https://arxiv.org/abs/2608.10533v1) \[cs.NI\] for this version) |
|  | [https://doi.org/10.48550/arXiv.2608.10533](https://doi.org/10.48550/arXiv.2608.10533) |

## Submission history

From: Bingwen Huangfu \[[view email](https://arxiv.org/show-email/9b310e0f/2608.10533)\]  
**\[v1\]** Tue, 11 Aug 2026 06:15:38 UTC (15,243 KB)

[Which authors of this paper are endorsers?](https://arxiv.org/auth/show-endorsers/2608.10533) | Disable MathJax ([What is MathJax?](https://info.arxiv.org/help/mathjax.html))
