Cooperation reliability based on reinforcement learning for cognitive radio networks

N Vučević, IF Akyildiz… - 2010 Fifth IEEE …, 2010 - ieeexplore.ieee.org
The primary objective of cooperation in Cognitive Radio (CR) networks is to increase the
efficiency and improve the network performance. However, CR users may act destructively …

Dynamic cooperator selection in cognitive radio networks

N Vučević, IF Akyildiz, J Pérez-Romero - Ad Hoc Networks, 2012 - Elsevier
The primary objective of cooperation in cognitive radio (CR) networks is to increase the
spectrum access efficiency and improve the network performance. However, Byzantine …

Cooperation and communication in cognitive radio networks based on TV spectrum experiments

K Chowdhury, R Doost-Mohammady… - … Symposium on a …, 2011 - ieeexplore.ieee.org
Cognitive radio (CR) ad hoc networks are composed of wireless nodes that may
opportunistically transmit in licensed frequency bands without affecting the primary users of …

Performance enhancement with cooperation based transmission in the cognitive radio networks

ZG Duan - 2009 WASE International Conference on Information …, 2009 - ieeexplore.ieee.org
Cognitive radio has been considered as a promising paradigm to achieve efficient spectrum
usage by allowing the coexistence of the primary and secondary networks. One fundamental …

Optimal number of secondary users for cooperative sensing in cognitive radio networks

L Zhang, D Zhang, G Huang - 2009 IEEE Youth Conference on …, 2009 - ieeexplore.ieee.org
In a cognitive radio network, cooperative spectrum sensing is conducted among the
secondary users so as to improve the sensing performance. However, it's not necessary to …

A novel cooperative spectrum sensing approach against malicious users in cognitive radio networks

W Zhendong, W Huiqiang… - 2013 International …, 2013 - ieeexplore.ieee.org
To deal with the existence of malicious secondary users bring damage to the performance of
cooperative spectrum sensing, a trust game model named FRTrust is proposed. In FRTrust …

Cooperative relay with power control in cognitive radio networks

X Liu, B Zheng, W Ji - 2010 6th International Conference on …, 2010 - ieeexplore.ieee.org
In cognitive radio networks (CRNs), secondary users (SUs) can share the spectrum with the
primary users (PUs) as long as the quality of service (QoS) of the primary system is …

A distributed cooperative MAC for cognitive radio ad-hoc networks

Y Li, R Zhang, B Cao, X You… - 2011 IEEE symposium …, 2011 - ieeexplore.ieee.org
Cognitive radio has been suggested as an efficient method for secondary users to promote
the efficient utilization of spectrum. Meanwhile, Cooperative relay allows different users or …

Providing statistical quality-of-service guarantees in cognitive radio networks with cooperation

SY Lien, NR Prasad, KC Chen… - … Workshop on Cognitive …, 2009 - ieeexplore.ieee.org
Cognitive radios (CRs) opportunistically sharing the wireless spectrum with the legacy
primary system (PS) are promising to improve the spectrum utilization. However, this …

Active cooperation between primary users and cognitive radio users in cognitive ad-hoc networks

W Su, JD Matyjas, S Batalama - 2010 IEEE International …, 2010 - ieeexplore.ieee.org
In this work, a cognitive cooperative communication protocol is proposed for cognitive ad-
hoc networks, in which primary users and cognitive radio (CR) users may cooperate for …