@misc{13487,
  author = {Naeem Khademi and Michael Welzl and Grenville Armitage and Chamil Kulatunga and David Ros and Gorry Fairhurst and Stein Gjessing and Sebastian Zander},
  title = {Alternative Backoff: Achieving Low Latency and High Throughput with ECN and AQM},
  abstract = {CoDel and PIE are recently proposed Active Queue Management (AQM) mechanisms that minimize the time packets spend enqueued at a bottleneck, instantiating shallow, 5 ms to 20 ms buffers with short-term packet burst tolerance. However, shallow buffering causes noticeable TCP performance degradation when a path{\textquoteright}s underlying round trip time (RTT) heads above 60ms to 80ms (not uncommon with cross-continental and inter-continental traffic). Using less-aggressive multiplicative backoffs is known to compensate for shallow bottleneck buffering. We propose ABE: {\textquotedblleft}Alternative Backoff with ECN{\textquotedblright}, which consists of enabling Explicit Congestion Notification (ECN) and letting individual TCP senders use a larger multiplica- tive decrease factor in reaction to ECN-marks from AQM- enabled bottlenecks. Using a mix of experiments, theory and simulations with standard NewReno and CUBIC flows, we show significant performance gains in lightly- multiplexed scenarios, without losing the delay-reduction benefits of deploying CoDel or PIE. ABE is a sender- side-only modification that can be deployed incrementally (requiring no flag-day) and offers a compelling reason to deploy and enable ECN across the Internet.},
  year = {2015},
  month = {07/2015},
  publisher = {Centre for Advanced Internet Architectures (CAIA), Swinburne University of Technology},
  address = {Melbourne, Australia},
  url = {http://caia.swin.edu.au/reports/150710A/CAIA-TR-150710A.pdf},
}