Ultra-Reliable Low Latency Communications in Future Wi-Fi Networks
Ultra Reliable Low Latency Communications (URLLC) is an important challenge for the next generation wireless networks, which poses very strict requirements to the delay and packet loss ratio. Satisfaction is hardly possible without introducing additional functionality to the existing communication technologies. In the paper, we propose and study an approach to enable URLLC in Wi-Fi networks by exploiting an additional radio similar to that of 802.11ba. We develop a mathematical model of a heterogeneous network with devices transmitting regular and URLLC data. With the model, we evaluate the efficiency of the proposed approach in terms of delay for URLLC traffic and throughput available for non-URLLC traffic. We show that our approach allows decreasing the delay by orders of magnitude, while the throughput is reduced insignificantly.