Ganesh Ananthanarayanan
Ion Stoica
ABSTRACT
Mobile devices are increasingly equipped with multiple network interfaces with complementary characteristics. In particular, the Wi-Fi interface has high throughput and transfer power efficiency, but its idle power consumption is prohibitive. In this paper we present, Blue-Fi, a sytem that predicts the availability of the Wi-Fi connectivity by using a combination of bluetooth contact-patterns and cell-tower information. This allows the device to intelligently switch the Wi-Fi interface on only when there is Wi-Fi connectivity available, thus avoiding the long periods in idle state and significantly reducing the the number of scans for discovery.
Our prediction results on traces collected from real users show an average coverage of 94% and an average accuracy of 84%, a 47% accuracy improvement over pure cell-tower based prediction, and a 57% coverage improvement over the pure bluetooth based prediction. For our workload, Blue-Fi is up to 62% more energy efficient, which results in increasing our mobile device's lifetime by more than a day.
- Companies Eye Location-Services Market. http://online.wsj.com/article/SB122722971742046469.html.Google Scholar
- IMAP IDLE monitor/notifier. http://www.hackint0sh.org/forum/f126/6116.htm.Google Scholar
- In The Hand. http://32fet.net.Google Scholar
- Is WiFi draining when not connected. http://forums.macrumors.com/archive/index.php/t-330279.html.Google Scholar
- Microsoft Pocket Outlook. http://www.microsoft.com/windowsmobile/en-us/downloads/microsoft/office-outlook-mobile.mspx.Google Scholar
- Spearman Rank Correlation Coefficient. http://mathworld.wolfram.com/SpearmanRankCorrelationCoefficient.html.Google Scholar
- WIGLE: Wireless Geographic Logging Engine. http://wigle.net.Google Scholar
- A. J. Nicholson and B. D. Noble. BreadCrumbs: Forecasting mobile connectivity. In Proceedings of The Fourteenth Annual International Conference on Mobile Computing and Networking (Mobicom '08), Sep 2008. Google ScholarDigital Library
- A. J. Nicholson, Y. Chawathe, M. Y. Chen, B. D. Noble, and D. Wetherall. Improved access point selection. In Proceedings of The Fourth International Conference on Mobile Systems, Applications, and Services (MobiSys '06), June 2006. Google ScholarDigital Library
- A. LaMarca, Y. Chawathe, S. Consolvo, J. Hightower, I. Smith, J. Scott . Place lab: Device positioning using radio beacons in the wild. In Proceedings of The Third International Conference on Pervasive Computing (Pervasive '05), May 2005. Google ScholarDigital Library
- A. Natarajan, M. Motani, and V. Srinivasan. Understanding Urban Interactions from Bluetooth Phone Contact Traces. In Proceedings of The Eighth Passive and Active Measurement Conference (PAM '07), Apr 2007. Google ScholarDigital Library
- A. Rahmati and L. Zhong. Context-for-Wireless: Context--Sensitive Energy-Efficient Wireless Data Transfer. In Proceedings of The Fifth International Conference on Mobile Systems, Applications, and Services (MobiSys '07), Jun 2007. Google ScholarDigital Library
- B. Greenstein, R. Gummadi, J. Pang, M. Y. Chen, T. Kohno, S. Seshan, and D. Wetherall. Can ferris bueller still have his day off? protecting privacy in the wireless era. In Proceedings of The Eleventh Workshop on Hot Topics in Operating Systems (HotOS-XI), May 2007. Google ScholarDigital Library
- E. S. Hall, D. K. Vawdrey, and C. D. Knutson. RF Rendez-Blue: reducing power and inquiry costs in Bluetooth-enabled mobile systems. In Proceedings of The Eleventh International Conf. on Computer Communications and Networks (ICCCN '02), Oct 2002.Google ScholarCross Ref
- E. Shih, P. Bahl, and M. J. Sinclair. Wake on wireless: An event driven energy saving strategy for battery operated devices. In Proceedings of The Eighth Annual International Conference on Mobile Computing and Networking (MobiCom '02), 2002. Google ScholarDigital Library
- F. Dabek, R. Cox, F. Kaashoek, and R. Morris. Vivaldi: A decentralized network coordinate system. In Proceedings of the 2004 conference on Applications, technologies, architectures, and protocols for computer communications (SIGCOMM '04), Aug 2004. Google ScholarDigital Library
- G. Ananthanarayanan, V. N. Padmanabhan, L. Ravindranath, and C. A. Thekkath. COMBINE: Leveraging the Power of Wireless Peers through Collaborative Downloading. In Proceedings of The Fifth International Conference on Mobile Systems, Applications, and Services (MobiSys '07), Jun 2007. Google ScholarDigital Library
- Ke Chen. On k-Median Clustering in High Dimensions. In Proceedings of The Seventeenth ACM-SIAM Symposium on Discrete Algorithms (SODA '06), Jan 2006. Google ScholarDigital Library
- M. Chen, T. Sohn, D. Chmelev, D. Haehnel, J. Hightower, J. Hughes, A. LaMarca, F. Potter, I. Smith, and A. Varshavsky. Practical Metropolitan-Scale Positioning for GSM Phones. In Proceedings of The Eighth International Conference on Ubiquitous Computing (UbiComp '06), Sep 2006. Google ScholarDigital Library
- P. Bahl, R. Chandra, J. Padhye, L. Ravindranath, M. Singh, A. Wolman and B. Zill. Enhancing the security of corporate wi-fi networks using dair. In Proceedings of The Fourth International Conference on Mobile Systems, Applications, and Services (MobiSys '06), Jun 2006. Google ScholarDigital Library
- P. Mohan, V. N. Padmanabhan, and R. Ramjee. TrafficSense: Rich Monitoring of Road and Traffic Conditions using Mobile Smartphones. In Microsoft Technical Report, MSR-TR-2008-59, Apr 2008.Google Scholar
- T. Pering, Y. Agarwal, R. Gupta, and R. Want. Coolspots: Reducing the power consumption of wireless mobile devices with multiple radio interfaces. In Proceedings of The Fourth International Conference on Mobile Systems, Applications, and Services (MobiSys '06), Jun 2006. Google ScholarDigital Library
- T. Sohn, A. Varshavsky, A. Lamarca, M. Chen, T. Choudhury, I. Smith, S. Consolvo, J. Hightower, W. Griswold, and E. de Lara. Mobility detection using everyday gsm traces. In Proceedings of The Eighth International Conference on Ubiquitous Computing (UbiComp '06), Sep 2006. Google ScholarDigital Library
- V. Bychkovsky, B. Hull, A. Miu, H. Balakrishnan, and S. Madden. A measurement study of vehicular internet access using in situ wi-fi networks. In Proceedings of The Twelfth Annual International Conference on Mobile Computing and Networking (MobiCom '06), 2006. Google ScholarDigital Library
- V. Otsason, A. Varshavsky, A. LaMarca, and E. de Lara. Accurate GSM Indoor Localization. In The Seventh International Conference on Ubiquitous Computing (Ubicomp '05), Sep 2005. Google ScholarDigital Library
- V. S. W. Wang and M. Motani. Adaptive contact probing mechanisms for delay tolerant applications. In Proceedings of The Thirteenth Annual International Conference on Mobile Computing and Networking (MobiCom '07), Sep 2007. Google ScholarDigital Library
- Y. Agarwal, C. Schurgers, and R. Gupta. Dynamic Power Management Using On Demand Paging for Networked Embedded Systems. In Proceedings of The 2005 Conference on Asia South Pacific Design Automation (ASP-DAC '05), Jan 2005. Google ScholarDigital Library
- Y. Agarwal, R. Chandra, A. Wolman, P. Bahl, and R. Gupta. Wireless wakeups revisited: Energy management for voip over wi-fi smartphones. In Proceedings of The Fifth International Conference on Mobile Systems, Applications, and Services (MobiSys '07), Jun 2007. Google ScholarDigital Library
Index Terms
- Blue-Fi: enhancing Wi-Fi performance using bluetooth signals
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