Scalable Edge-assisted Fusion and Path Prediction for Connected Autonomous Vehicles

• URL: http://arxiv.org/abs/2609.04364v1
• Date: Thu, 03 Sep 2026 18:25:03 GMT
• Title: Scalable Edge-assisted Fusion and Path Prediction for Connected Autonomous Vehicles
• Abstract summary: We present Conductor, an edge-based solution for creating a unified world model from the perspective of a fixed anchor.<n>Our solution adheres to the Age of Information time budget by dynamically limiting the number of AVs that would lead to the best quality of results.
• Score: 34.48638046693974
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The planning algorithms inside an Autonomous Vehicle (AV) rely on information from on-board sensors whose line of sight is limited by emerging traffic conditions and occlusions. Edge-assisted creation of a unified world model fusing information from AVs and Road Side Units (RSUs) in a geographical locale, and the prediction of AVs' future trajectories, can enhance the planning algorithms inside AVs to improve quality metrics, such as better traffic flow and collision prevention. AVs participating in such enhancements are called Connected Autonomous Vehicles (CAVs). However, such information generated by the edge (world model and motion predictions) must reach the planners within a tight Age of Information (AoI) time budget to be useful. The state of the art fuses per-CAV information: each AV fuses inputs from other actors locally, which limits both scalability with actor count and quality of results. We present Conductor, an edge-based solution for creating a unified world model from the perspective of a fixed anchor (e.g., an RSU) in a locale and predicting future trajectories of AVs in that locale. Our solution adheres to the AoI time budget by dynamically limiting the number of AVs that would lead to the best quality of results. Specifically, we introduce an occlusion-aware selector that favors information contribution by AVs that detect objects in the locale not covered by RSUs. We pair this selector with a runtime controller that adapts both the number of AV inputs to fuse and the amount of trajectory predictions in each cycle to stay within the AoI time budget. Evaluation on CAV simulation infrastructure shows our joint selector-controller meets the AoI safety bound across traffic scenarios with up to 31 CAVs, with fusion fidelity close to an Oracle and much better than a random selector under the same AoI constraint.

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