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Seminar: Looking into the surround of contacts in intermittently-connected wireless networks  

Marcelo Dias De Amorim, LIP6 - CNRS & UPMC

Thursday, January 14th 2010, 11h00 - 12h00

Location :

LIP6
Site Passy-Kennedy
104 avenue du Président Kennedy 75016 Paris
Salle 847

Abstract :

In this talk, we will discuss some preliminary work on the spatial characterization of intermittently-
connected wireless networks. The motivation is that the literature has focused almost exclusively 
on the temporal aspect of contacts and inter-contacts between nodes. Furthermore, it is 
frequently assumed that contacts have infinite capacity, which is a too strong consideration 
especially in wireless networks. We propose the surround indicator as a metric to exhibit the 
spatial dimension of contacts in opportunistic networks. This metric can be used for example as 
a measure of potential interference that a contact might undergo or to understand the validity of 
forwarding strategies like betweenness centrality. We evaluate the surround indicator on two 
existing datasets. Our preliminary results reveal that contacts have too heterogeneous surrounds 
to be considered only in terms of duration.

This work is part of Nadjet Belblidia's thesis and is done in collaboration with Jérémie Leguay 
(Thalès), Vania Conan (Thalès), Jon Crowcroft (Cambridge University), and Serge Fdida (UPMC).

Host :

ComplexNetworks (LIP6)