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Phoenix: An Epidemic Approach to Time Reconstruction

Summary: Phoenix: An Epidemic Approach to Time
Jayant Gupchup
Douglas Carlson
Razvan Musaloiu-E.
Alex Szalay
Andreas Terzis
Computer Science Department
Physics and Astronomy Department
Johns Hopkins University
Abstract. Harsh deployment environments and uncertain run-time con-
ditions create numerous challenges for postmortem time reconstruction
methods. For example, motes often reboot and thus lose their clock state,
considering that the majority of mote platforms lack a real-time clock.
While existing time reconstruction methods for long-term data gathering
networks rely on a persistent basestation for assigning global timestamps
to measurements, the basestation may be unavailable due to hardware
and software faults. We present Phoenix, a novel offline algorithm for re-


Source: Amir, Yair - Department of Computer Science, Johns Hopkins University


Collections: Computer Technologies and Information Sciences