T Zhang, Y Wu, K Lang, DHK Tsang - IEEE Systems Journal, 2010 - ieeexplore.ieee.org
In cognitive radio (CR) networks, secondary users can be coordinated to perform spectrum sensing so as to detect primary user activities more accurately. However, more sensing …
Spectrum sensing is an important aspect of cognitive radio networks (CRNs). Secondary users (SUs) should periodically sense the channels to ensure primary-user (PU) protection …
User cooperation for spectrum sensing in cognitive radios has been proposed in order to improve the overall performance by mitigating multi-path fading and shadowing experienced …
Green cognitive radios show promise for high energy efficiency (EE) in the future of wireless communications. Spectrum sensing refers to an energy-consuming procedure that allows …
In this paper, we formulate the energy-efficient cooperative sensing scheduling scheme for a cognitive radio network (CRN) with heterogeneous primary signal-to-noise ratio at each …
A Celik, AE Kamal - IEEE Transactions on cognitive …, 2016 - ieeexplore.ieee.org
In this paper, we address energy efficient (EE) cooperative spectrum sensing policies for large scale heterogeneous cognitive radio networks (CRNs) which consist of multiple …
A promising technology that tackles the conflict between spectrum scarcity and underutilization is cognitive radio (CR), of which spectrum sensing is one of the most …
N Zhao - Circuits, Systems, and Signal Processing, 2016 - Springer
Cooperative spectrum sensing (CSS) that utilizes multi-user diversity to mitigate channel instability and noise uncertainty is a promising technique in cognitive radio networks …
T Zhang, DHK Tsang - 2011 IEEE International Conference on …, 2011 - ieeexplore.ieee.org
Cooperative spectrum sensing, which provides an effective approach to improve the sensing performance and better exploit the spectrum opportunities, is an important technology to …