# Time-Sensitive Networking in IEEE 802.11 be: On the Way to Low-Latency WiFi 7
## 5 Use Cases
### Multimedia  
WiFi is nowadays the predominant Internet access technology for mobile devices in home and office environments running multimedia applications. The short-term evolution of Multimedia IoT foresees the consolidation of more advanced time-sensitive services such as real-time high-quality 4K/8K audio and video streaming, virtual reality, augmented reality, cloud gaming, and interactive applications which will not be only targeted for entertainment, but also for educational and instructive purposes [52].  
Indeed, 60.6% of all downlink Internet traffic already corresponds to video streaming, while online gaming takes another 8% [53]. New cloud gaming applications like Google Stadia and Nvidia Geforce Now combine these two categories by streaming videogames directly from a remote server to the user. These applications cannot buffer due to their interactive nature, and so they require high throughput (Figure 6) as well as low delay, having issues when round-trip time (RTT) goes above 10 ms [54].  
\begin{table}
\begin{tabular}{l c c c} \hline \hline
**Sector and Use Case** & \multicolumn{3}{c}{**Requirements**} \\ \hline  & **Latency (ms)** & **Reliability (\%)** & **Throughput (Mbps)** \\ \hline
**Multimedia** & & & \\ Real-time high-quality video streaming & 3–10 & \textgreater{}99.9 & 5–25 \\ Virtual Reality & 10–20 & \textgreater{}99.9 & 25–500 \\ Augmented Reality & 1–50 & \textgreater{}99.99 & 1–200 \\ Real-time pro gaming & 5–50 & \textgreater{}99.9 & \textgreater{}3 \\ Cloud gaming & 5–50 & \textgreater{}99.9 & 10–35 \\ \hline
**Health care** & & & \\ Teledigagiosios, telemonitoring, & 50–200 & \textgreater{}99.9 & 0.5–5 \\ and telerehabilitation & 1–10 & \textgreater{}99.9999 & \(\sim\)10 \\ Telesurgery & 5–20 & \textgreater{}99.999 & 0.2–1 \\ Exoskeletons and prosthetic hands & 1–50 & \textgreater{}99.999 & 0.1–5 \\ \hline
**Industrial** & & & \\ Process automation & 1–50 & \textgreater{}99.99 & 0.1–5 \\ Human machine interface & 50–200 & \textgreater{}99.9 & \(\sim\)1 \\ Tactile/Haptic technology & 1–5 & \textgreater{}99.999 & \(\sim\)1 \\ \hline
**Transport** & & & \\ Real-time traffic information & 40–500 & \textgreater{}99 & 0.1–1 \\ Autonomous vehicle, automated guided vehicle, & 10–100 & \textgreater{}99.9999 & 1–5 \\ and drone control & Remote-controlled vehicle with video & 10–100 & \textgreater{}99.99 & \(\sim\)10 \\ \hline \hline \end{tabular}
\end{table}
Table 2: WiFi 7 low-latency use cases.  
Moreover, studies show that the brain can identify images seen for as little as 13 ms [55], which is less than the time duration of a single frame of video at 60 fps (i.e., 16.7 ms). Current online game companies (and potentially in the future other online video content distributors) use precisely this framerate in their streamings, which imposes stringent requirements on delay and reliability.  
All in all, the already generalized adoption of WiFi technology indoors, its backward compatibility, and its distinctive features with respect to wired alternatives (that is, essentially, flexibility, simplicity, and mobility) suggest that the emergence of a low-latency operation mode for WiFi 7 would position it as a preferential option for upcoming multimedia use cases together with 5G enhanced Mobile Broadband.