ABSTRACT
Connected cars are a rapidly growing segment of Internet of Things (IoT). While they already use cellular networks to support emergency response, in-car WiFi hotspots and infotainment, there is also a push towards updating their firmware over-the-air (FOTA). With millions of connected cars expected to be deployed over the next several years, and more importantly persist in the network for a long time, it is important to understand their behavior, usage patterns, and impact --- both in terms of their experience, as well as other users. Using one million connected cars on a production cellular network, we conduct network-scale measurements of over one billion radio connections to understand various aspects including their spatial and temporal connectivity patterns, the network conditions they face, use and handovers across various radio frequencies and mobility patterns. Our measurement study reveals that connected cars have distinct sets of characteristics, including those similar to regular smartphones (e.g. overall diurnal pattern), those similar to IoT devices (e.g. mostly short network sessions), but also some that belong to neither type (e.g. high mobility). These insights are invaluable in understanding and modeling connected cars in a cellular network and in designing strategies to manage their data demand.
- 3GPP. 2016. Cellular system support for ultra-low complexity and low throughput Internet of Things (CIoT), 3GPP TR 45.820. http://www.3gpp.org/DynaReport/45-series.htm. (2016).Google Scholar
- R. Archibald, D. Gupta, R. Jana, V. Gopalakrishnan, A. S. Rajan, K. B. Ramia, D. Dahle, J. Cooper, G. Kennedy, N. Rao, S. Sonnads, and M. Mc Donald. 2016. An IoT control plane model and its impact analysis on a virtualized MME for connected cars. In 2016 IEEE International Symposium on Local and Metropolitan Area Networks (LANMAN). 1--6.Google Scholar
- Consumer Technology Association. 2014. The Life Expectancy of Electronics. https://www.cta.tech/News/Blog/Articles/2014/September/The-Life-Expectancy-of-Electronics.aspx. (September 2014).Google Scholar
- Ramon Caceres, Richard A. Becker, Ji Meng Loh, Chris Volinsky, Simon Urbanek, Karrie Hanson, and Alexander Varshavsky. 2011. A Tale of One City: Using Cellular Network Data for Urban Planning. IEEE Pervasive Computing 10 (2011), 18--26. Google ScholarDigital Library
- Robert N. Charette. 2009. This Car Runs on Code. (2009). http://spectrum.ieee.org/transportation/systems/this-car-runs-on-codeGoogle Scholar
- Doug DeMuro. 2015. Buying a Car: How long can you expect a car to last? http://www.autotrader.com/car-shopping/buying-a-car-how-long-can-you-expect-a-car-to-last-240725. (2015).Google Scholar
- Ford. 2016. How to download SYNC software updates to a USB drive. (2016). https://owner.ford.com/how-tos/sync-technology/sync/software-updates/how-to-download-software-updates-to-a-usb-drive.htmlGoogle Scholar
- Junxian Huang, Feng Qian, Alexandre Gerber, Z. Morley Mao, Subhabrata Sen, and Oliver Spatscheck. 2012. A Close Examination of Performance and Power Characteristics of 4G LTE Networks. In Proc. of ACM MobiSys. Google ScholarDigital Library
- R. Kiyohara, S. Mii, M. Matsumoto, M. Numao, and S. Kurihara. 2009. A new method of fast compression of program code for ota updates in consumer devices. IEEE Transactions on Consumer Electronics 55, 2 (May 2009), 812--817. Google ScholarDigital Library
- Gabe Nelson. 2016. Over-the-air updates on varied paths: Companies scramble to satisfy customers, capture savings. (January 2016). http://www.autonews.com/article/20160125/OEM06/301259980/over-the-air-updates-on-varied-pathsGoogle Scholar
- Binh Nguyen, Arijit Banerjee, Vijay Gopalakrishnan, Sneha Kasera, Seungjoon Lee, Aman Shaikh, and Jacobus Van der Merwe. 2014. Towards Understanding TCP Performance on LTE/EPC Mobile Networks. In Proceedings of the 4th Workshop on All Things Cellular: Operations, Applications & Challenges (AllThings-Cellular '14). ACM, New York, NY, USA, 41--46. Google ScholarDigital Library
- OMA 2017. Open Mobile Alliance Device Management. http://openmobilealliance.org/about-oma/work-program/device-management/. (2017).Google Scholar
- Popular Science. 2016. Software Now To Blame For 15 Percent Of Car Recalls. (2016). http://www.popsci.com/software-rising-cause-car-recallsGoogle Scholar
- Joe F. Rodriguez. 2017. Inside the Muni NextBus meltdown: Emails reveal what could have averted crisis. http://www.sfexaminer.com/inside-muni-nextbus-meltdown-emails-reveal-averted-crisis. (Jan 2017).Google Scholar
- M. Z. Shafiq, L. Ji, A. X. Liu, J. Pang, and J. Wang. 2013. Large-Scale Measurement and Characterization of Cellular Machine-to-Machine Traffic. IEEE/ACM Transactions on Networking 21, 6 (Dec 2013), 1960--1973. Google ScholarDigital Library
- M. Steger, M. Karner, J. Hillebrand, W. Rom, C. Boano, and K. Römer. 2016. Generic framework enabling secure and efficient automotive wireless SW updates. In 2016 IEEE 21st International Conference on Emerging Technologies and Factory Automation (ETFA). 1--8.Google Scholar
- Telefonica. 2014. Connected Car Industry Report 2014. https://iot.telefonica.com/multimedia-resources/connected-car-industry-report- 2014-english. (Jul 2014).Google Scholar
Index Terms
- Connected cars in cellular network: a measurement study
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