Delay Analysis of IEEE 802.11be Multi-Link Operation Under Finite Load

Multi-link Operation (MLO), arguably the most disruptive feature introduced in IEEE 802.11be, will cater for delay-sensitive applications by using multiple radio interfaces concurrently. In this paper, we analyze delay distribution of MLO under non-saturated traffic. Our results show that upgrading from legacy single-link to successfully contains $95$th percentile as traffic load increases, but also adding extra yields rapidly diminishing gains. Further experiments conduct on Google Stadia traces, accounting realistic with batch arrivals, confirm insights stemming our theoretical analysis, vouching support high-resolution real-time video a controlled delay.