Method and apparatus for Intelligent selection of opportunities spectrum in Cognitive Radio Networks

摘要

The present Invention relates to a device and a method for Intelligent selection of opportunities spectrum in Cognitive Radio Networks.Improve the performance of mobility in Cognitive Radio Networks, modifying their behavior dynamically, according to the requirements and parameters of the user communication.The apparatus and Method proposed,Is composed of a control unit to coordinate the whole process of selecting the best Spectral Opportunity according to Spectrum characteristics and requirements of the userAryan.Through an Adaptive Selection Unit, according to certain parameters: type of application information, demand Supply relationship, Traffic pattern and Traffic level,Choose the selection mechanism of available Channel more appropriate feedback from three different ways: through the allocation Unit, FED, multi-channelThrough the multi-channel allocation Unit, and Prediction, the prediction Unit.Based on the above, the following decision criteria: probability of Channel availability, Estimated Time of availability of the Channel.Signal to noise ratio of the channel and Channel bandwidth.