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the performance of multi-antenna spectrum sensing over Nakagami fading channel is analyzed when the received signals from multiple antennas are uncorrelated. Firstly, maximal ratio combining, equal-gain combining and selection combining are employed to combine multiple signals, and then the noise-normalized energy algorithm is adopted to detect the combined signal. And then, detection probability,...
In this paper, we concentrate on introducing an optimized energy detection approach applied to cognitive MIMO. Firstly, the system with multiple secondary users is modeled and then the weighting factor of each secondary user is calculated and analyzed. Under the constraint that the quadratic sum of combination factors is unit, the optimal weighting factors of secondary users sharing some certain spectrum...
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