LVM4CSI: Enabling Direct Application of Pre-Trained Large Vision Models for Wireless Channel Tasks

• URL: http://arxiv.org/abs/2507.05121v1
• Date: Mon, 07 Jul 2025 15:33:55 GMT
• Title: LVM4CSI: Enabling Direct Application of Pre-Trained Large Vision Models for Wireless Channel Tasks
• Authors: Jiajia Guo, Peiwen Jiang, Chao-Kai Wen, Shi Jin, Jun Zhang,
• Abstract summary: LVM4CSI is a framework that maps complex-valued channel state information to visual formats compatible with computer vision (CV) models.<n>It achieves comparable or superior performance to task-specific neural networks (NNs)<n>It significantly reduces the number of trainable parameters and eliminates the need for task-specific NN design.
• Score: 47.223747747750394
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Accurate channel state information (CSI) is critical to the performance of wireless communication systems, especially with the increasing scale and complexity introduced by 5G and future 6G technologies. While artificial intelligence (AI) offers a promising approach to CSI acquisition and utilization, existing methods largely depend on task-specific neural networks (NNs) that require expert-driven design and large training datasets, limiting their generalizability and practicality. To address these challenges, we propose LVM4CSI, a general and efficient framework that leverages the structural similarity between CSI and computer vision (CV) data to directly apply large vision models (LVMs) pre-trained on extensive CV datasets to wireless tasks without any fine-tuning, in contrast to large language model-based methods that generally necessitate fine-tuning. LVM4CSI maps CSI tasks to analogous CV tasks, transforms complex-valued CSI into visual formats compatible with LVMs, and integrates lightweight trainable layers to adapt extracted features to specific communication objectives. We validate LVM4CSI through three representative case studies, including channel estimation, human activity recognition, and user localization. Results demonstrate that LVM4CSI achieves comparable or superior performance to task-specific NNs, including an improvement exceeding 9.61 dB in channel estimation and approximately 40% reduction in localization error. Furthermore, it significantly reduces the number of trainable parameters and eliminates the need for task-specific NN design.

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