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Infostation communication is an innovative communication paradigm thought to provide connectivity in isolated areas. In infostation communications, wireless ports are deployed to act as gateways between the remote users and the communication infrastructure. However, users are allowed to exchange data with the infrastructure only when in the coverage area of one of them. In order to provide further...
Opportunistic networks represent a new frontier for networking research as due to node mobility the network might become disconnected. Such intermittent connectivity imposes challenges to protocol design, especially when information access might require the availability of updated information about resources shared by mobile nodes. An opportunistic network can be seen as a peer-to-peer network where...
Data aggregation is a promising approach for reducing energy consumption and relaying of redundant data in wireless sensor networks for monitoring applications. However data aggregation implies, on the one hand, an increase in network processing at certain nodes, referred to as aggregators, possibly leading to a higher delivery delay to the sink. On the other hand, the advantages of using aggregation...
Support of P2P communities in mobile environments is a challenging task. To this purpose numerous algorithms have been recently proposed to speed up resource search throughout the network. Among these, structured DHT approaches seem very promising since they allow for a successful resource search by keeping complexity low. One of these techniques denoted as Georoy, was recently proposed with the aim...
Nowadays mobile users carry a huge amount of information inside their devices (mobile phones, ipods, PDAs, etc.). Actually, digital contents are not only carried but created ontheroad using mobile devices equipped with cameras, audio and video recorders, location systems, etc. Nevertheless, only the P2P-based systems, which work well only in wired networks, are able to easily share these contents...
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