An Accurate and Analytically Tractable Model for Human Inter-Contact Times

Date Added: Oct 2010
Format: PDF

The authors present an analytically tractable mathematical approach for accurately modeling the distribution of inter-contact times between mobile devices carried by users. The contribution of this paper is two-fold: they show how to employ a MarkovModulated Poisson process (MMPP) for characterizing long-term dependencies in the mobility behavior, and they propose to employ a graph-based clustering approach for taking into account different user groups with inhomogeneous mobility patterns. They illustrate the effectiveness of the proposed approach by considering two comprehensive real-world trace data sets.