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This paper explores the possibility of using the relationship between the frequency of the transmit waveform and the location of grating lobes to achieve beam steering. The performance of the proposed beam steering technique is compared with conventional phase steering in terms of hardware requirements, beamwidths and angular coverage.
In this paper we present a method to diagnose and mitigate against primary user emulation attacks (PUEA) in cognitive radio networks. We develop a hybrid algorithm that uses a combination of compressed sensing and belief propagation to identify and combat PUEAs. We propose to use compressive sensing at the fusion centre to localise a primary user, then distribute the primary user location to secondary...
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