Silent TCP connection closure for cellular networks

Feng Qian, Subhabrata Sen, Oliver Spatscheck

Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Scopus citations

Abstract

FIN and RST packets that close TCP connections are often delayed by timeout. In cellular networks, delayed FIN/RST packets often incur significant energy consumption overhead for handsets. On the other hand, closing TCP connection immediately after its last data transfer avoids the energy overhead, but can cause performance degradation as doing so makes reusing TCP connections difficult. To resolve such a dilemma, we propose a novel TCP extension called STC (Silent TCP connection Closure) using which both endpoints close a TCP connection silently without exchanging FIN or RST packets after timeout. Our solution is lightweight, backward-compatible, and incrementally deployable. It requires modifications to smartphone operation systems, but, if supported by cellular middleboxes, no change to remote servers. We evaluate the benefits of STC using a 10-day real trace consisting of 0.6 million LTE user sessions. When fully deployed, STC can save the overall handset radio energy consumption by up to 11.3% and reduce the network-wide signaling load by up to 6.0%.

Original languageEnglish (US)
Title of host publicationCoNEXT 2013 - Proceedings of the 2013 ACM International Conference on Emerging Networking Experiments and Technologies
PublisherAssociation for Computing Machinery
Pages211-216
Number of pages6
ISBN (Print)9781450321013
DOIs
StatePublished - 2013
Externally publishedYes
Event2013 9th ACM International Conference on Emerging Networking Experiments and Technologies, CoNEXT 2013 - Santa Barbara, CA, United States
Duration: Dec 9 2013Dec 12 2013

Publication series

NameCoNEXT 2013 - Proceedings of the 2013 ACM International Conference on Emerging Networking Experiments and Technologies

Other

Other2013 9th ACM International Conference on Emerging Networking Experiments and Technologies, CoNEXT 2013
Country/TerritoryUnited States
CitySanta Barbara, CA
Period12/9/1312/12/13

Keywords

  • Cellular networks
  • Connection reuse
  • HTTP keep-alive
  • TCP FIN
  • TCP connection closure
  • TCP options

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