Rodrigo Román

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Cognitive Radio Networks (CRNs) arise as a promising solution to the scarcity of spectrum. By means of cooperation and smart decisions influenced by previous knowledge, CRNs are able to detect and profit from the best spectrum opportunities without interfering primary licensed users. However, besides the well-known attacks to wireless networks, new attacks(More)
Wireless sensor network is an emerging technology. WSN’s are deployed in an open and unattended environment. Therefore they are prone to security threats. The traditional approach of cryptography alone was not sufficient for security. Cryptography was not able to prevent internal adversaries from inserting the forged data. As a result Trust factor scheme(More)
The goal of this work is to describe the architecture of an integrated environment for specifying and simulating communication protocols , with timing constraints. The system, under development, is based on the CAD-Estelle toolset, which has been used in many academic works. In the proposed environment, all design steps can be done from the Extended Finite(More)
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