Wi-Fi Aware
Wi-Fi Aware
Solution Selection
Overview
Wi-Fi Aware, also known as NAN (Neighbor Awareness Networking), is a peer-to-peer communication protocol based on standard Wi-Fi technology. Its key distinction from Wi-Fi P2P is the decentralized architecture of Wi-Fi Aware, enabling all devices to autonomously discover and communicate directly without centralized coordination.
Key Advantages
Direct data transmission between devices is achieved through the standard NAN protocol, ensuring good compatibility.
Based on a publish/subscribe model, devices match needs by broadcasting service identifiers (such as "file sharing"), enabling precise, low-latency discovery
Devices only wake up synchronously to exchange beacon frames during pre-scheduled "discovery windows", remaining in sleep state most of the time
Encrypted data paths can be established between devices, with effective protection for beacon frames, management frames, and data frames
Typical Applications
As shown on the left diagram, devices may engage in interactions including but not limited to the following:
- Multiple mobile phones simultaneously send print tasks to a printer via point-to-point links.
- Mobile phones directly operate smart devices (e.g., cameras, sweeping robots, speakers).
- File sharing between mobile phones.
Recommended ICs
| Features | Filter | RTL872xD | RTL8721Dx | RTL8721F | RTL8720E | RTL8710E | RTL8726E | RTL8713E | RTL8730E | RTL8735B |
|---|---|---|---|---|---|---|---|---|---|---|
| Application Processor |
Cortex-M | Cortex-M | Cortex-M | Cortex-M | Cortex-M | Cortex-M | Cortex-M | Cortex-A | Cortex-M | |
| DSP | ||||||||||
| ISP | ||||||||||
| TrustZone | ||||||||||
| Dual Band | ||||||||||
| Wi-Fi6 | ||||||||||
| R-MESH | ||||||||||
| Ultra-low power | ||||||||||
| Ethernet | ||||||||||
| BT Dual Mode | ||||||||||
| HMI | ||||||||||
| Audio ADC | ||||||||||
| Audio DAC | ||||||||||
| USB | ||||||||||
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BT Dedicated Antenna |


