Internet Congestion Control via Deep Reinforcement Learning.

We present and investigate a novel and timely application domain for deep reinforcement learning (RL): Internet congestion control. Congestion control is the core networking task of modulating traffic sources' data-transmission rates so as to efficiently and fairly allocate network resources. Congestion control is fundamental to computer networking research and practice, and has recently been the subject of extensive attention in light of the advent of challenging Internet applications such as live video, augmented and virtual reality, Internet-of-Things, and more. We build on the recently introduced Performance-oriented Congestion Control (PCC) framework to formulate congestion control protocol design as an RL task. Our RL framework opens up opportunities for network practitioners, and even application developers, to train congestion control models that fit their local performance objectives based on small, bootstrapped models, or complex, custom models, as their resources and requirements merit. We present and discuss the challenges that must be overcome so as to realize our long-term vision for Internet congestion control.