Power Law and Exponential Decay of Intercontact Times between Mobile Devices

@article{Karagiannis2007PowerLA,
  title={Power Law and Exponential Decay of Intercontact Times between Mobile Devices},
  author={Thomas Karagiannis and Jean-Yves Le Boudec and Milan Vojnovic},
  journal={IEEE Transactions on Mobile Computing},
  year={2007},
  volume={9},
  pages={1377-1390}
}
We examine the fundamental properties that determine the basic performance metrics for opportunistic communications. We first consider the distribution of intercontact times between mobile devices. Using a diverse set of measured mobility traces, we find as an invariant property that there is a characteristic time, order of half a day, beyond which the distribution decays exponentially. Up to this value, the distribution in many cases follows a power law, as shown in recent work. This power law… CONTINUE READING

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