CarSpeak: A content-centric network for autonomous driving

Swarun Kumar, Lixin Shi, Nabeel Ahmed, Stephanie Gil, Dina Katabi, Daniela Rus

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

41 Scopus citations

Abstract

This paper introduces CarSpeak. a communication system for autonomous driving. CarSpeak enables a car to query and access sensory information captured by other cars in a manner similar to how it accesses information from its local sensors. CarSpeak adopts a content-centric approach where information objects - i.e., regions along the road - Are first class citizens. It names and accesses road regions using a multi-resolution system, which allows it to scale the amount of transmitted data with the available bandwidth. CarSpeak also changes the MAC protocol so that, instead of having nodes contend for the medium, contention is between road regions, and the medium share assigned to any region depends on the number ot cars interested in that region. CarSpeak is implemented in a state-of-the-art autonomous driving system and tested on indoor and outdoor hardware testbeds including an autonomous golf car and 10 iRobot Create robots. In comparison with a baseline that directly uses 802.11. CarSpeak reduces the time for navigating around obstacles by 2.4 x, and reduces the probability of a collision due to limited visibility by 14 x.

Original languageEnglish (US)
Title of host publicationProceedings of the ACM SIGCOMM 2012 and Best Papers of the Co-located Workshops
Pages259-270
Number of pages12
Edition4
DOIs
StatePublished - Dec 1 2012
Externally publishedYes
EventAnnual Conference of the ACM Special Interest Group on Data Communication on the Applications, Technologies, Architectures, and Protocols for Computer Communication, ACM SIGCOMM 2012 - Helsinki, Finland
Duration: Aug 13 2012Aug 17 2012

Publication series

NameComputer Communication Review
Number4
Volume42
ISSN (Print)0146-4833
ISSN (Electronic)1943-5819

Other

OtherAnnual Conference of the ACM Special Interest Group on Data Communication on the Applications, Technologies, Architectures, and Protocols for Computer Communication, ACM SIGCOMM 2012
CountryFinland
CityHelsinki
Period8/13/128/17/12

Keywords

  • Autonomous vehicles
  • Content-centric
  • Wireless

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications

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  • Cite this

    Kumar, S., Shi, L., Ahmed, N., Gil, S., Katabi, D., & Rus, D. (2012). CarSpeak: A content-centric network for autonomous driving. In Proceedings of the ACM SIGCOMM 2012 and Best Papers of the Co-located Workshops (4 ed., pp. 259-270). (Computer Communication Review; Vol. 42, No. 4). https://doi.org/10.1145/2377677.2377724