Robust Cooperative Sensing Via State Estimation in Cognitive Radio Networks

Download Now Date Added: Feb 2011
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Cooperative sensing, a key enabling technology for dynamic spectrum access, is vulnerable to various sensing targeted attacks, such as the primary user emulation or spectrum sensing data falsification. These attacks can easily disrupt the primary signal detection process, thus crippling the operation of dynamic spectrum access. While such sensing-targeted attacks can be easily launched by an attacker, it is very challenging to design a robust cooperative spectrum sensing scheme due mainly to the practical constraints inherent in spectrum sensing, particularly the shared/open nature of the wireless medium and the unpredictability of signal propagation.