Opportunistic wireless communication in theme parks: a study of visitors mobility
CHANTS '11 Proceedings of the 6th ACM workshop on Challenged networks
A simple queueing network model of mobility in a campus wireless network
S3 '11 Proceedings of the 3rd ACM workshop on Wireless of the students, by the students, for the students
United we find: enabling mobile devices to cooperate for efficient neighbor discovery
Proceedings of the Twelfth Workshop on Mobile Computing Systems & Applications
Social-aware multicast in disruption-tolerant networks
IEEE/ACM Transactions on Networking (TON)
On routing protocols using mobile social networks
International Journal of Wireless and Mobile Computing
Discovering periodic patterns of nodal encounters in mobile networks
Pervasive and Mobile Computing
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In this paper, we analyze multiple wireless LAN (WLAN) traces from university and corporate campuses. In particular, we consider important events between mobile nodes in wireless networks—encounters. We seek to understand encounter patterns in the mobile network from a holistic view, using a graph analysis approach. Such an analysis sheds light on the diverse, nonhomogeneous nature of users in the given environments in terms of their encounter events with other nodes. Furthermore, we evaluate the feasibility of forming an infrastructureless network to reach most of the nodes utilizing time-varying internode connectivity through encounters, and the robustness of such an ad hoc communication network. Our analysis shows that while the encounter events are “sparse” (i.e., any given node does not encounter with many other nodes), the connectivity of the whole network is well-maintained, and a Small World pattern of nodal encounter emerges for the observation periods longer than one day. More interestingly, the encounter events collectively form a robust communication network, in which store-carry-forward message dissemination can be successful even with over 20 percent noncooperative nodes or removal of short-lived (up to minutes) encounter events.