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Spectrum sensing based on recovered secondary frame in the presence of realistic decoding errors
2012 IEEE International Conference on Communications (ICC)
Year: 2012 | Conference Paper |
Cited by: Papers (2)
The performance of spectrum sensing using the received secondary frames is analyzed. Unlike the previous work that assumes perfect decoding of the secondary signal, the new analysis takes the decoding errors into account and therefore provides a more realistic comparison between the new model and the conventional model. Both the receiver operating characteristics for spectrum sensing and the achie...Show More
Performance Evaluation of Spectrum Sensing Using Recovered Secondary Frames With Decoding Errors
The performance of spectrum sensing using the recovered secondary frames is analyzed. Unlike the previous work that assumes perfect decoding of the secondary signal, the new analysis takes the decoding errors into account and therefore provides a more realistic comparison between the new model and the conventional model. Both the receiver operating characteristics curves for spectrum sensing and t...Show More
Analytical Evaluation of Adaptive-Modulation-Based Opportunistic Cognitive Radio in Nakagami-$m$ Fading Channels
The performance of adaptive modulation for cognitive radio with opportunistic access is analyzed by considering the effects of spectrum sensing, primary user (PU) traffic, and time delay for Nakagami- $m$ fading channels. Both the adaptive continuous rate scheme and the adaptive discrete rate scheme are considered. Numerical examples are presented to quantify the effects of spectrum sensing, PU tr...Show More
Performance Analysis of Spectrum Sensing with Multiple Status Changes in Primary User Traffic
IEEE Communications Letters
Cited by: Papers (28)
In this letter, the impact of primary user traffic with multiple status changes on the spectrum sensing performance is analyzed. Closed-form expressions for the probabilities of false alarm and detection are derived. Numerical results show that the multiple status changes of the primary user cause considerable degradation in the sensing performance. This degradation depends on the number of change...Show More
Performance Analysis of Adaptive Modulation for Cognitive Radios with Opportunistic Access
2011 IEEE International Conference on Communications (ICC)
Year: 2011 | Conference Paper |
Cited by: Papers (4)
The performance of adaptive modulation for cognitive radio with opportunistic access is analyzed by considering the effects of spectrum sensing and primary user traffic for Nakagami-$m$ fading channels. Both the adaptive continuous rate scheme and the adaptive discrete rate scheme are considered. Numerical results show that spectrum sensing and primary user traffic cause considerable degradation t...Show More
Effect of Primary User Traffic on Sensing-Throughput Tradeoff for Cognitive Radios
The effect of the primary user traffic on the performance of the secondary network is investigated for the tradeoff between the sensing quality and the achievable throughput. Numerical results show that the actual secondary network performance when the random departure or arrival of the primary user is taken into account is worse than the predicted secondary network performance in the literature a...Show More
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