# Practical Issues and Challenges in CSI-based Integrated Sensing and Communication

arXiv: https://arxiv.org/abs/2204.03535 · HTML: https://mlsanity.com/paper/2204.03535/

## Key facts

- Cited by 5 papers in the map (data through 14 Oct 2026).
- First posted on arXiv 18 Mar 2022.

## Built on by (most cited first, 5 of 5)

- [Self-Supervised Learning for WiFi CSI-Based Human Activity Recognition: A Systematic Study](https://mlsanity.com/paper/2308.02412/) (2023)
- [DARDA: Domain-Aware Real-Time Dynamic Neural Network Adaptation](https://mlsanity.com/paper/2409.09753/) (2024)
- [ARC-Fi: Exploiting Antenna Spatial Diversity for Label-Efficient Domain Generalization in Wi-Fi Sensing](https://mlsanity.com/paper/2310.06328/) (2023)
- [mmHSense: Multi-Modal and Distributed mmWave ISAC Datasets for Human Sensing](https://mlsanity.com/paper/2509.21396/) (2025)
- [A 6G Integrated Sensing and Communication Framework for Railway Intrusion Detection and Collision Prediction](https://mlsanity.com/paper/2608.04710/) (2026)

## Abstract (arXiv)

Next-generation mobile communication network (i.e., 6G) has been envisioned to go beyond classical communication functionality and provide integrated sensing and communication (ISAC) capability to enable more emerging applications, such as smart cities, connected vehicles, AIoT and health care/elder care. Among all the ISAC proposals, the most practical and promising approach is to empower existing wireless network (e.g., WiFi, 4G/5G) with the augmented ability to sense the surrounding human and environment, and evolve wireless communication networks into intelligent communication and sensing network (e.g., 6G). In this paper, based on our experience on CSI-based wireless sensing with WiFi/4G/5G signals, we intend to identify ten major practical and theoretical problems that hinder real deployment of ISAC applications, and provide possible solutions to those critical challenges. Hopefully, this work will inspire further research to evolve existing WiFi/4G/5G networks into next-generation intelligent wireless network (i.e., 6G).