Task-Oriented Communications for Visual Navigation with Edge-Aerial Collaboration in Low Altitude Economy

• URL: http://arxiv.org/abs/2504.18317v2
• Date: Tue, 29 Apr 2025 01:46:52 GMT
• Title: Task-Oriented Communications for Visual Navigation with Edge-Aerial Collaboration in Low Altitude Economy
• Authors: Zhengru Fang, Zhenghao Liu, Jingjing Wang, Senkang Hu, Yu Guo, Yiqin Deng, Yuguang Fang,
• Abstract summary: Vision-based methods face severe bandwidth, memory and processing constraints on lightweight UAVs.<n>We propose a task-oriented communication framework, where UAVs equipped with multi-camera systems extract compact multi-view features and offload localization tasks to edge servers.
• Score: 16.62021190565778
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: To support the Low Altitude Economy (LAE), precise unmanned aerial vehicles (UAVs) localization in urban areas where global positioning system (GPS) signals are unavailable. Vision-based methods offer a viable alternative but face severe bandwidth, memory and processing constraints on lightweight UAVs. Inspired by mammalian spatial cognition, we propose a task-oriented communication framework, where UAVs equipped with multi-camera systems extract compact multi-view features and offload localization tasks to edge servers. We introduce the Orthogonally-constrained Variational Information Bottleneck encoder (O-VIB), which incorporates automatic relevance determination (ARD) to prune non-informative features while enforcing orthogonality to minimize redundancy. This enables efficient and accurate localization with minimal transmission cost. Extensive evaluation on a dedicated LAE UAV dataset shows that O-VIB achieves high-precision localization under stringent bandwidth budgets. Code and dataset will be made publicly available: github.com/fangzr/TOC-Edge-Aerial.

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