Preemptive Channel Access Scheme for Next Generation Wi-Fi

The Ultra High Reliability Study Group (UHR SG), designated as IEEE 802.11bn, has embarked. Central to the ongoing discussions within 8th generation wireless LAN is the introduction of novel features for Wi-Fi 8 that prioritize ultra-low latency. Among these innovations, the preemption operation has emerged as a key mechanism to achieve such low-latency targets. Despite its potential, a significant challenge remains: the absence of a robust channel access scheme to mitigate collisions among concurrent preemption performing stations. Addressing this gap, this paper proposes a cutting-edge preemptive channel access scheme tailored for the emergent Wi-Fi 8 infrastructure.