Instruct: Given the title of a paper, retrieve paper titles that are cited by the given paper
Query: IEEE 802.22: An Introduction to the First Wireless Standard based on Cognitive Radios
Cognitive radio: brain-empowered wireless communications
Cooperative spectrum sensing in cognitive radio networks : A survey
Advances on Security Threats and Countermeasures for Cognitive Radio Networks: A Survey
A review: Security challenges in cognitive radio networks
Towards a trust aware cognitive radio architecture
Cognitive-Radio-Based Internet of Things: Applications, Architectures, Spectrum Related Functionalities, and Future Research Directions
Cognitive radio for flexible mobile multimedia communications
Convergence of cognitive radio networks
Fundamental design tradeoffs in cognitive radio systems
Cooperative Communications for Cognitive Radio Networks
Medium Access Control Protocols for Cognitive Radio Ad Hoc Networks: A Survey
Cognitive Radio Ad-hoc Networks: A Routing Perspective
Dynamic Spectrum Access in Cognitive Radio Networks with RF Energy Harvesting
A survey on spectrum management in cognitive radio networks
Efficient Resource Allocation in Device-to-Device Communication Using Cognitive Radio Technology
The Security of Physical Layer in Cognitive Radio Networks
Channel-Hopping-Based Communication Rendezvous in Cognitive Radio Networks
A Survey on Radio Resource Allocation in Cognitive Radio Sensor Networks
Routing Metrics of Cognitive Radio Networks: A Survey
Primary radio user activity models for cognitive radio networks: A survey
The frequency range of the voice fundamental in the speech of male and female adults
Neural Networks A Comprehensive Foundation
beyond the ' east - west ' dichotomy : global variation in cultural models of selfhood .
managing cybersickness in virtual reality .
Design of Direct LED Backlighting Based on an Analytical Method of Uniform Illumination