Understanding Wi-Fi jitter

Our new congestion control algorithm, C4 , is designed to work well in difficult network conditions, and in particular on Wi-Fi networks exhibiting high delay jitter. We noticed the “Wi-Fi jitter” issue two years ago (see the weird case of Wi-Fi latency spikes ). We would see sudden jumps in measured RTT, from 1 or 2 milliseconds to 50 tor even 200ms. Since that, we have been looking for…