用世界模型预测信号覆盖,让无人机群自主协商优化通信范围。
WONDER: A Radio World Model-based Negotiation Framework for Multi-Agent UAV Coverage Optimization

- 基于联合嵌入的无线电世界模型,预判轨迹对信号的影响。
- 多轮协商机制使覆盖平衡得分达0.870,优于STACCA 0.162。
- 适合灾后快速恢复通信的无人机集群系统设计者。
灾害损毁地面基础设施会破坏无线覆盖,而无人机群可快速恢复通信。然而,由于本地观测受限、无线电影响隐藏及机间通信瓶颈,局部行动选择与群体覆盖效果之间存在显著差距。为此,本文提出基于无线电世界模型的分布式无人机覆盖优化框架WONDER。为解决机载观测无法获取未来无线电场的问题,WONDER采用基于JEPA的无线电世界模型,从可用信息中学习并预测各候选轨迹的增量无线电影响。多轮协商机制通过逐次承诺轨迹并重评剩余方案,在更新上下文中协调最优路径。理论分析验证了该框架有效性。同时,采用类似PPO的演员网络,并交替更新世界模型与策略。此外,构建了包含62个都市场景的综合仿真环境RadioDynamics,集成无人机移动性、无线传播、机间通信建模及基于射线追踪的数字孪生几何。在11个测试场景中的实验表明,WONDER在七种方法中取得最高平衡得分(0.870),较STACCA提升0.162,且保持100%无人机连通性。
原文摘要 · Abstract (English)
Post-disaster damage to terrestrial infrastructure can disrupt wireless coverage,while Uncrewed Aerial Vehicle (UAV) swarms provide a promising solution for rapid restoration.However, due to the limitations in local geometry observations hidden radio impact,and inter-UAV communication,there exists a significant gap between locally visible movement choices and swarm-level coverage outcomes.To combat this gap,we propose a raido World-model-based Optimized Negotiation framework for Distributed UAV covERage (WONDER).Particularly, to tackle the unavailability of the future radio field from onboard observations, WONDER uses a Joint-Embedding Predictive Architecture (JEPA)-based radio world model to learn and predict the incremental radio effect of each candidate trajectory from deployment-available information.Multi-round negotiation in WONDER then coordinates ranked proposals by committing one trajectory at a time and re-evaluating the remaining proposals under the updated context. Our theoretical analyses further validate the effectiveness of such a world model-based framework. WONDER also adopts a Proximal Policy Optimization (PPO)-style Actor and alternates between updating the world model and the actor. Furthermore,we build RadioDynamics,a comprehensive simulation environment that integrates UAV mobility,radio propagation, inter-UAV communication modeling,and digital-twin geometry with ray-traced fields in $62$ metropolitan scenes.Experiments on $11$ testing scenes in RadioDynamics show that WONDER achieves the highest balanced score among seven evaluated methods,reaching $0.870$ with a $0.162$ coverage advantage over STACCA, while maintaining $100\%$ connectivity between UAVs.
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