Continuous mobile sensing applications are emerging. Despite their usefulness, their real-world adoption has been slow. Many users are turned away by the drastic battery drain caused by continuous sensing and processing. In this paper, we propose CoMon+, a novel cooperative context monitoring system, which addresses the energy problem through opportunistic cooperation among nearby users. For effective cooperation, we develop a benefit-aware negotiation method to maximize the energy benefit of context sharing. CoMon+ employs heuristics to detect cooperators who are likely to remain in the vicinity for a long period of time, and the negotiation method automatically devises a cooperation plan that provides mutual benefit to cooperators, while considering running applications, available devices, and user policies. Especially, CoMon+ improves the negotiation method proposed in our earlier work, CoMon , to exploit multiple processing plans enabled by various personal sensing devices; each plan can be alternatively used for cooperation, which in turn will maximize overall power saving. We implement a CoMon+ prototype and show that it provides significant benefit for mobile sensing applications, e.g., saving 27-71% of smartphone power consumption depending on cooperation cases. Also, our deployment study shows that CoMon+ saves average 19.7% of battery under daily use of a prototype application compared to the case without CoMon+ running.
Personal Sensing Device, Cooperation, Context Sensing, Peer Discovery, Negotiation, Energy
Computer Sciences | Software Engineering
Software and Cyber-Physical Systems
IEEE Transactions on Mobile Computing
Institute of Electrical and Electronics Engineers (IEEE)
LEE, Youngki; KANG, Seungwoo; MIN, Chulhong; JU Younghyun; HWANG, Inseok; and SONG, Junehwa Song.
CoMon+: A Cooperative Context Monitoring System for Multi-Device Personal Sensing Environments. (2016). IEEE Transactions on Mobile Computing. 15, (8), 1908-1924. Research Collection School Of Information Systems.
Available at: http://ink.library.smu.edu.sg/sis_research/3125
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