Title :
Optimal cooperative spectrum sensing for cognitive radio
Author_Institution :
Guilin Univ. of Electron. & Technol., Guilin, China
Abstract :
Several factors like fading and shadow affect the ability of weak signal detection. Previous work has shown that cooperation among the cognitive users can increase the detection probability for a given probability of false alarm. The paper is to develop a spectrum sensing scheme for cognitive radio based on a model that is realistic and takes into account all the factors that would affect the system. It investigates the effect of variable channel gain on the cooperation between secondary users, proposes a cooperative spectrum sensing scheme. The results of the simulation, done based on the analytical results, are then presented which show the extent of advantage cooperation between the secondary radios and the effect of the channel gain between the secondary user and the fusion centre.
Keywords :
cognitive radio; probability; signal detection; cognitive radio; detection probability; fusion centre; optimal cooperative spectrum sensing; secondary user; signal detection; spectrum; variable channel gain; Artificial neural networks; Cooperation; channel gain; cognitive radio;
Conference_Titel :
Intelligent Computing and Integrated Systems (ICISS), 2010 International Conference on
Conference_Location :
Guilin
Print_ISBN :
978-1-4244-6834-8
DOI :
10.1109/ICISS.2010.5657063