Integrated sensing and communication (ISAC) has been envisioned as a foundational technology for future low-altitude wireless networks (LAWNs), enabling real-time environmental perception and data exchange across aerial-ground systems. In this article, we first explore the roles of ISAC in LAWNs from both node-level and network-level perspectives. We highlight the performance gains achieved through hierarchical integration and cooperation, wherein key design trade-offs are demonstrated. Apart from physical-layer enhancements, emerging LAWN applications demand broader functionalities. To this end, we propose a multi-functional LAWN framework that extends ISAC with capabilities in control, computation, wireless power transfer, and large language model (LLM)-based intelligence. We further provide a representative case study to present the benefits of ISAC-enabled LAWNs and the promising research directions are finally outlined.
@article{arxiv.2508.17354,
title = {Toward Multi-Functional LAWNs with ISAC: Opportunities, Challenges, and the Road Ahead},
author = {Jun Wu and Weijie Yuan and Xiaoqi Zhang and Yaohuan Yu and Yuanhao Cui and Fan Liu and Geng Sun and Jiacheng Wang and Dusit Niyato and Dong In Kim},
journal= {arXiv preprint arXiv:2508.17354},
year = {2025}
}