Thats a unique idea.You should consider the following idea to enhance your idea so that it would impact uniquely: ,  propose a novel method of signal-to-noise ratio (SNR) estimation for cognitive radio (CR) systems at low SNRs. By jointly exploiting the second-order moment of the received signal and the correlation of the received signal por spectrum with the a priori known primary por spectrum,  obtain the estimates of both the signal por and the noise por, and the SNR estimation is thus acquired. Simulation results show that the proposed method outperforms other existing estimators in the low SNR region and the credible range of the estimated SNR extends to around −20 dB. In addition, the proposed method requires no a priori knowledge of the modulation type, making it appealing for wireless systems with adaptive modulation schemes.
['Kun Wu', 'Guangliang Ren']
I am writing a research paper on a idea Power spectrum correlation based SNR estimation for cognitive radios
[{"from": "human", "value": "I am writing a research paper on a idea Power spectrum correlation based SNR estimation for cognitive radios"}, {"from": "gpt", "value": "Thats a unique idea.You should consider the following idea to enhance your idea so that it would impact uniquely: ,  propose a novel method of signal-to-noise ratio (SNR) estimation for cognitive radio (CR) systems at low SNRs. By jointly exploiting the second-order moment of the received signal and the correlation of the received signal por spectrum with the a priori known primary por spectrum,  obtain the estimates of both the signal por and the noise por, and the SNR estimation is thus acquired. Simulation results show that the proposed method outperforms other existing estimators in the low SNR region and the credible range of the estimated SNR extends to around \u221220 dB. In addition, the proposed method requires no a priori knowledge of the modulation type, making it appealing for wireless systems with adaptive modulation schemes."}]