"This work shows that two well-known spatial and temporal mobility metrics for mobile ad hoc networks (MANETs) have drawbacks, possibly leading to invalid results. Based on the concept of spatial dependence in the absence of movement among mobile nodes, we propose mobility metrics able to promptly capture spatial and temporal dependence among mobile nodes. Through simulation, we compared the proposed metrics over a diversified set of synthetic mobility models. The results revealed that our spatial metrics can capture spatial dependence in scenarios having different levels of node pause time. Our temporal metric also demonstrated to be better suited for capturing different levels of temporal dependence, without being biased by node speed. Thus, the proposed mobility metrics can accurately capture spatial and temporal node behavior in MANETs.". |