Operating ITS-G5 DSRC over Unlicensed Bands: A City-Scale Performance Evaluation

Ioannis Mavromatis, Andrea Tassi, Robert J. Piechocki

Research output: Contribution to conferenceConference Paper

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Abstract

Future Connected and Autonomous Vehicles (CAVs) will be equipped with a large set of sensors. The large amount of generated sensor data is expected to be exchanged with other CAVs and the road-side infrastructure. Both in Europe and the US, Dedicated Short Range Communications (DSRC) systems, based on the IEEE 802.11p Physical Layer, are key enabler for the communication among vehicles. Given the expected market penetration of connected vehicles, the licensed band of 75 MHz, dedicated to DSRC communications, is expected to become increasingly congested. In this paper, we investigate the performance of a vehicular communication system, operated over the unlicensed bands 2.4 GHz - 2.5 GHz and 5.725 GHz - 5.875 GHz. Our experimental evaluation was carried out in a testing track in the centre of Bristol, UK and our system is a full-stack ETSI ITS-G5 implementation. Our performance investigation compares key communication metrics (e.g., packet delivery rate, received signal strength indicator) measured by operating our system over the licensed DSRC and the considered unlicensed bands. In particular, when operated over the 2.4 GHz - 2.5 GHz band, our system achieves comparable performance to the case when the DSRC band is used. On the other hand, as soon as the system, is operated over the 5.725 GHz - 5.875 GHz band, the packet delivery rate is 30% smaller compared to the case when the DSRC band is employed. These findings prove that operating our system over unlicensed ISM bands is a viable option. During our experimental evaluation, we recorded all the generated network interactions and the complete data set has been publicly available.
Original languageEnglish
Number of pages7
Publication statusPublished - 9 Nov 2019
EventIEEE International Symposium on Personal, Indoor and Mobile Radio Communications - Istanbul, Turkey
Duration: 8 Sep 201911 Sep 2019
Conference number: 30
http://pimrc2019.ieee-pimrc.org/

Conference

ConferenceIEEE International Symposium on Personal, Indoor and Mobile Radio Communications
Abbreviated titleIEEE PIMRC 2019
CountryTurkey
CityIstanbul
Period8/09/1911/09/19
Internet address

Keywords

  • ITS-G5
  • DSRC
  • V2X
  • CAV
  • ITS
  • Data Offloading

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    Mavromatis, I., Tassi, A., & Piechocki, R. J. (2019). Operating ITS-G5 DSRC over Unlicensed Bands: A City-Scale Performance Evaluation. Paper presented at IEEE International Symposium on Personal, Indoor and Mobile Radio Communications , Istanbul, Turkey.