Victor Sucasas

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Cooperative spectrum sensing is envisaged to increase reliability in cognitive radio networks. Several users cooperate to detect the availability of a wireless channel. In this framework, some malicious users may affect the decisions taken by the cognitive users by providing false information, introducing spectrum sensing data falsification (SSDF). In this(More)
Hierarchical topologies have been suggested to increase network stability in mobile ad hoc networks (MANETs). In a hierarchical ad hoc network nodes are clustered in more stable virtual groups. Ideally, the members of these groups can establish links with longer lifetimes with the leader of the group, clusterhead. However, in highly mobile ad hoc networks,(More)
Privacy-preservation is of paramount importance for the emerging Intelligent Transportation System (ITS) applications, such as traffic monitoring and road safety.These applications require regular transmission of messages among vehicles or between vehicles and backend servers.The received messages should be authenticated so that messages from malicious or(More)