Survey towards Cognitive Ability Guarantee in Cognitive Radio Networks
Feng Guang-shen · 2014
Cognitive radio network can sense wireless environment and then uses spectrum white holes in an opportunistic manner through dynamic spectrum access technology.Cognitive ability is an essential attribute of cognitive radio network,therefore the safety guarantee of cognitive ability is directly related to the practical process in cognitive radio networks.Cognitive ability is faced various security threats due to the complexity of cognitive radio network architecture and node mobility issues.Cognitive ability security issues and corresponding solutions were introduced from the aspects of cognitive communication,resources sensing,inference decision,and services fit,and then the shortages and weaknesses of the existing solutions were summarized.Development tendencies on cognitive ability guarantee were proposed afterwards based on trust mechanism.Problems and challenges faced by cognitive ability guarantee as well as a discussion on the future research topics were referred to at last.