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LangCoop: Collaborative Driving with Language

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arxiv 2504.13406 v2 pith:CQIZJU3M submitted 2025-04-18 cs.RO cs.AIcs.CLcs.CV

classification cs.ROcs.AIcs.CLcs.CV
keywords communicationlangcoopdrivinginformationlanguageautonomousbandwidthcollaborative
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

Multi-agent collaboration holds great promise for enhancing the safety, reliability, and mobility of autonomous driving systems by enabling information sharing among multiple connected agents. However, existing multi-agent communication approaches are hindered by limitations of existing communication media, including high bandwidth demands, agent heterogeneity, and information loss. To address these challenges, we introduce LangCoop, a new paradigm for collaborative autonomous driving that leverages natural language as a compact yet expressive medium for inter-agent communication. LangCoop features two key innovations: Mixture Model Modular Chain-of-thought (M$^3$CoT) for structured zero-shot vision-language reasoning and Natural Language Information Packaging (LangPack) for efficiently packaging information into concise, language-based messages. Through extensive experiments conducted in the CARLA simulations, we demonstrate that LangCoop achieves a remarkable 96\% reduction in communication bandwidth (< 2KB per message) compared to image-based communication, while maintaining competitive driving performance in the closed-loop evaluation. Our project page and code are at https://xiangbogaobarry.github.io/LangCoop/.

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Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Unleashing Hierarchical Reasoning: An LLM-Driven Framework for Training-Free Referring Video Object Segmentation

    cs.CV 2025-09 conditional novelty 6.0 of 10

    A training-free pipeline parses a video query with an LLM, tracks candidates with SAM2, then uses coarse motion plus conditional pose reasoning to segment the referred object.

  2. AirV2X: Unified Air-Ground Vehicle-to-Everything Collaboration

    cs.CV 2025-06 conditional novelty 6.0 of 10

    AirV2X-Perception is a 6.73-hour simulated dataset and benchmark for collaborative perception with up to 5 vehicles, 5 roadside units, and 5 drones.

  3. CoopReflect: Towards Natural Language Communication for Cooperative Autonomous Driving via Multi-Agent Learning

    cs.RO 2025-05 conditional novelty 6.0 of 10

    Post-episode multi-agent debriefing lets LLM driving agents learn concise natural-language coordination protocols that avoid collisions and merge traffic, and distillation makes the policy fast enough for near-real-time use.

  4. A Survey on Vision-Language-Action Models for Autonomous Driving

    cs.CV 2025-06 conditional novelty 4.0 of 10

    A survey organizes vision-language-action models for autonomous driving into four stages, compares over 20 systems, and catalogs datasets, benchmarks, and open challenges.

  5. Chain-of-Thought for Autonomous Driving: A Comprehensive Survey and Future Prospects

    cs.RO 2025-05 conditional novelty 4.0 of 10

    A survey that classifies chain-of-thought methods for autonomous driving into modular, logical, and reflective pipelines, and proposes three evolutionary stages from direct prompting to reinforcement learning.

  6. Automated Vehicles Should be Connected with Natural Language

    cs.MA 2025-06 conditional novelty 3.0 of 10

    A vision paper recommending natural language as the universal communication medium for connected and automated vehicles.

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