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In this letter, we consider the problem of energy detection of unknown signals in an intervehicular communication (IVC) system over $n^\ast$Rayleigh fading channels (also known as cascaded Rayleigh) . Novel tight approximations for the probability of detection are derived for the no-diversity and the maximum ratio combining (MRC)) diversity schemes. Moreover, we investigate the system performance...
In this paper, we study cooperative spectrum sensing over composite fading channels. First, we consider the Mixture of Gaussian distribution to model the composite channel statistics and derive a simple generic approximation for the average probability of detection which can be efficiently applied to any composite fading channel. Second, we derive the optimal voting rule for hard combining in cooperative...
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