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Wireless networks today are partially being formed by nodes (e.g. Internet access points, smartphones, femtocells)that are owned and carried by humans. In such scenarios where several strangers are expected to interact for the sake of robust data transmission, trust and reputation are of vital importance. As such, User Centric Networks require well-defined trust metrics in order to ensure the robustness...
Cooperation incentives are essential in user-centric networks to motivate users to share services and resources (including bandwidth, computational power, and storage space) and to avoid selfish nodes to hinder the functioning of the entire system. Virtual currency and reputation mechanisms are commonly adopted in online communities to boost participation, but their joint application has not been...
Wi-Fi networks and its users are increasing more and more. Unfortunately, the risk of using one Wi-Fi or another varies and there is no means of selecting the most trustworthy hotspot. There are different solutions like websites that provide a way for the users to rate the hotspot after they have used it. However, there is no means to verify whether the user rating is trustworthy or not. Our solution...
The Internet is soon going to be extended with the information collected from sensor networks deployed in wild remote regions of the world. For example, sensors may be dispersed in the jungle and forward information about the sensed states of the natural ecosystem, such as, humidity, fire detection... However, it is still quite easy for attackers to disconnect the sensors network from the Internet...
Computing anytime anywhere is more and more the rule. In this ambient intelligent world, the choice of identity mechanisms will have a large impact on its social, cultural, business and political aspects. Privacy is a human need and the whole of society would suffer from its demise. Moreover, people have a hectic life and cannot spend their time administering their digital identities. In this paper,...
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