The purpose of this talk is to present challenges in the area of opportunistic mobile networks, which are networks composed of mobile nodes (e.g., cellphones, PDAs, laptops) that are carried by humans and may communicate locally using wireless links (e.g. BlueTooth). For delay-tolerant applications, these devices may exploit human mobility and local contacts, bypassing the infrastructure to extend services and increase capacity.
In this talk, we quickly survey a few analytical questions, related to mobility modeling, including:
- impact of inter-contact times statistics on forwarding,
- existence of a phase transition in random temporal network,
- emergence of small world navigation from random walks, Each of them motivates a common open challenge: understanding further the properties of human mobility to accurately understand its impact.
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