DocumentCode :
2046920
Title :
Scale-free opportunistic networks: Is it possible?
Author :
Ferretti, Stefano ; Ghini, Vittorio ; Panzieri, Fabio
Author_Institution :
Dept. of Comput. Sci., Univ. of Bologna, Bologna, Italy
fYear :
2012
fDate :
19-23 March 2012
Firstpage :
625
Lastpage :
630
Abstract :
The coupling of scale-free networks with mobile unstructured networks is certainly unusual. In mobile networks, connections active at a given instant are constrained by the geographical distribution of mobile nodes, and by the limited signal strength of the wireless technology employed to build the ad-hoc overlay. This is in contrast with the presence of hubs, typical of scale-free nets. However, opportunistic (mobile) networks possess the distinctive feature to be delay tolerant; mobile nodes implement a store, carry and forward strategy that permits to disseminate data based on a multi-hop route, which is built in time, when nodes encounter other ones while moving. In this paper, we consider opportunistic networks as evolving graphs where links represent contacts among nodes arising during a (non-instantaneous) time interval. We discuss a strategy to control the way nodes manage contacts and build “opportunistic overlays”. Based on such an approach, interesting overlays can be obtained, shaped following given desired topologies, such as scale-free ones.
Keywords :
complex networks; delay tolerant networks; graph theory; mobile ad hoc networks; overlay networks; telecommunication network routing; telecommunication network topology; ad-hoc overlay; carry and forward strategy; data dissemination; delay tolerant network; evolving graphs; geographical distribution; limited signal strength; mobile networks; mobile nodes; mobile unstructured networks; multihop route; noninstantaneous time interval; opportunistic overlays; scale-free nets; scale-free networks; scale-free opportunistic networks; topology; wireless technology; Ad hoc networks; Mobile communication; Mobile computing; Network topology; Peer to peer computing; Relays; Topology; Opportunistic Networks; Scale-Free Networks; Self-organization;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Pervasive Computing and Communications Workshops (PERCOM Workshops), 2012 IEEE International Conference on
Conference_Location :
Lugano
Print_ISBN :
978-1-4673-0905-9
Electronic_ISBN :
978-1-4673-0906-6
Type :
conf
DOI :
10.1109/PerComW.2012.6197590
Filename :
6197590
Link To Document :
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