BLADE: Adaptive Wi-Fi Contention Control for Next-Generation Real-Time Communication
summary
A nationwide yearlong measurement with hacked AP drivers and server telemetry identifies Wi‑Fi last‑hop packet delivery droughts as the root cause of long‑tail stalls. The team implements BLADE, a distributed MAIMD contention controller that uses the microscopic access rate (MAR) to adjust contention windows (CW) on commercial APs and in ns‑3. Under heavy contention BLADE cuts packet transmission tail latency by over 5×, reduces cloud‑gaming video stalls by >90%, raises median MAC throughput ~3×, and shows fast, fair convergence in real‑world tests.
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chapters (6)
- 0:00BLADE introduction
- 2:24Wi-Fi last hop latency
- 9:13Legacy contention limits
- 12:20BLADE adaptive design
- 15:30BLADE performance results
- 16:34Conclusion
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