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Abstract: We address the difficult question of inferring plausible node mobility basedonly on information from wireless contact traces. Working with mobilityinformation allows richer protocol simulations, particularly in dense networks,but requires complex set-ups to measure, whereas contact information is easierto measure but only allows for simplistic simulation models. In a contact tracea lot of node movement information is irretrievably lost so the originalpositions and velocities are in general out of reach. We propose a fastheuristic algorithm, inspired by dynamic force-based graph drawing, capable ofinferring a plausible movement from any contact trace, and evaluate it on bothsynthetic and real-life contact traces. Our results reveal that i the qualityof the inferred mobility is directly linked to the precision of the measuredcontact trace, and ii the simple addition of appropriate anticipation forcesbetween nodes leads to an accurate inferred mobility.



Autor: John Whitbeck, Marcelo Dias de Amorim, Vania Conan

Fuente: https://arxiv.org/







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