Application of compressive sensing in cognitive radio communications: A survey

SK Sharma, E Lagunas, S Chatzinotas… - … surveys & tutorials, 2016 - ieeexplore.ieee.org
Compressive sensing (CS) has received much attention in several fields such as digital
image processing, wireless channel estimation, radar imaging, and cognitive radio (CR) …

Cognitive radio techniques under practical imperfections: A survey

SK Sharma, TE Bogale, S Chatzinotas… - … Surveys & Tutorials, 2015 - ieeexplore.ieee.org
Cognitive radio (CR) has been considered as a potential candidate for addressing the
spectrum scarcity problem of future wireless networks. Since its conception, several …

SNR estimation for multi-dimensional cognitive receiver under correlated channel/noise

SK Sharma, S Chatzinotas… - IEEE Transactions on …, 2013 - ieeexplore.ieee.org
In addition to Spectrum Sensing (SS) capability required by a Cognitive Radio (CR), Signal
to Noise Ratio (SNR) estimation of the primary signals at the CR receiver is crucial in order …

[PDF][PDF] Enriched the spectrum sensing performance of estimated SNR based detector in cognitive radio networks

A Bagwari, GS Tomar - International Journal of Hybrid Information …, 2015 - academia.edu
Spectrum sensing is one of the vital functions, plays an important role in cognitive radio
networks (CRN). This paper discuss to enrich the sensing performance of propose estimated …

A hybrid cognitive transceiver architecture: Sensing-throughput tradeoff

SK Sharma, S Chatzinotas… - 2014 9th International …, 2014 - ieeexplore.ieee.org
Spectrum Sensing (SS) and underlay have been considered as two important techniques for
enabling the spectral coexistence of the licensed and unlicensed wireless communication …

Eigenvalue based SNR estimation for cognitive radio in presence of channel correlation

SK Sharma, S Chatzinotas… - 2013 IEEE Global …, 2013 - ieeexplore.ieee.org
In addition to spectrum sensing capability required by a Cognitive Radio (CR), Signal to
Noise Ratio (SNR) estimation of the primary signals is crucial in order to adapt its coverage …

Interweave/underlay cognitive radio techniques and applications in satellite communication systems

SK Sharma - 2014 - orbilu.uni.lu
The demand for precious radio spectrum is continuously increasing while the available radio
frequency resource has become scarce due to spectrum segmentation and the dedicated …

Estimation-Throughput tradeoff for underlay cognitive radio systems

A Kaushik, SK Sharma, S Chatzinotas… - 2015 IEEE …, 2015 - ieeexplore.ieee.org
Understanding the performance of cognitive radio systems is of great interest. To perform
dynamic spectrum access, different paradigms are conceptualized in the literature. Of these …

Utilization of idle time slot in spectrum sensing under noise uncertainty

I Tumar, A Arar, A El-Saleh - 2021 - dspace.hebron.edu
Spectrum sensing in cognitive radio (CR) is a critical process as it directly influences the
accuracy of detection. Noise uncertainty affects the reliability of detecting vacant holes in the …

Power spectrum correlation based SNR estimation for cognitive radios

K Wu, G Ren - 2015 International Conference on Wireless …, 2015 - ieeexplore.ieee.org
In this paper, we 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 …