Abstract
Understanding the characteristics of synthetic mobility models is important for the design and analysisof routing schemes for mobile ad hoc networks (MANETs). This is especially true for mobile opportunistic networks where node mobility is utilized to achieve message delivery. In this paper, we study the properties of common mobility models. Specifically, we analytically show that inter-contact times of mobile nodes can be closely approximated as exponentially distributed in Random Waypoint and Random Direction mobility models under typical opportunistic network settings. Analytical and experimental results are presented.
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