An Atheros NIC (Network Interface Card) is a wireless network adapter based on chipsets manufactured by Atheros Communications (later acquired by Qualcomm), widely adopted in WiFi CSI sensing research because its hardware and drivers can be modified to expose raw CSI data — including amplitude and phase information across multiple subcarriers — that standard commercial NICs do not make accessible. This capability makes Atheros NICs foundational tools for researchers collecting fine-grained channel measurements needed for tasks such as human activity recognition, gesture detection, and localization. Key variants used in the field include chipsets such as the AR9380 and AR9580, which support the 802.11n standard and are commonly paired with open-source CSI extraction tools like Atheros-CSI-Tool, enabling controlled, reproducible sensing experiments across multiple antennas and subcarriers.
Source Papers
- A Survey on Green Wireless Sensing: Energy-Efficient Sensing via WiFi CSI and Lightweight Learning ↗ — A Survey on Green Wireless Sensing: Energy-Efficient Sensing
- WiFi-Based Human Sensing With Deep Learning: Recent Advances, Challenges, and Opportunities ↗ — WiFi-Based Human Sensing With Deep Learning: Recent Advances