@proceedings{401,
  author = {Yaxiong Xie and Fan Yi and Kyle Jamieson},
  title = {PBE-CC: Congestion Control via Endpoint-Centric, Physical-Layer Bandwidth Measurements},
  abstract = {<p>Cellular networks are becoming ever more sophisticated and overcrowded, imposing the most delay, jitter, and throughput damage to end-to-end network flows in today s internet. We therefore argue for fine-grained mobile endpoint-based wireless measurements to inform a precise congestion control algorithm through a well-defined API to the mobile s cellular physical layer. Our proposed congestion control algorithm is based on Physical-Layer Bandwidth measurements taken at the Endpoint (PBE-CC), and captures the latest 5G New Radio innovations that increase wireless capacity, yet create abrupt rises and falls in available wireless capacity that the PBE-CC sender can react to precisely and rapidly. We implement a proof-of-concept prototype of the PBE measurement module on software-defined radios and the PBE sender and receiver in C. An extensive performance evaluation compares PBE-CC head to head against the cellular-aware and wireless-oblivious congestion control protocols proposed in the research community and in deployment, in mobile and static mobile scenarios, and over busy and idle networks. Results show 6.3\% higher average throughput than BBR, while simultaneously reducing 95th percentile delay by 1.8x.</p>},
  year = {2020},
  journal = {Proceedings of the 2020 ACM SIGCOMM Conference},
  number = {2002.03475},
  month = {08/2020},
  publisher = {ACM},
  address = {New York, NY},
  issn = {9781450379557},
  url = {https://arxiv.org/pdf/2002.03475.pdf},
  doi = {10.1145/3387514.3405880},
  language = {eng},
}