摘要
This paper introduces the research progress on the cognition flow in the National Basic Research Program of China(973 Program)under Grant No. 2009CB320400 "Research on Basic Theories and Key Technologies of Cognitive Radio Networks". We present the motivation behind the proposal of the concept of cognition flow, provide the definition, discuss the features, behaviours, representations, mathematical models, and the functions of cognition flow in Cognitive Radio Networks(CRNs). We also analyse how the cognition flow promotes the convergence of heterogeneous networks.Our group also constructed the test platform to verify the usefulness of cognition flow. The results that were simulated by computers and tested on the platform both confirm that cognition flow can realise efficient interaction of cognitive information among heterogeneous networks in CRNs, which contributes to the seamless convergence of heterogeneous networks,and significantly improves the spectrum efficiency and users' Quality of Experience(QoE).
This paper introduces the research progress on the cognition flow in the National Basic Research Program of China （973 Program） under Grant No. 2009CB320400 ＂Research on Basic Theories and Key Technologies of Cognitive Radio Networks＂. We present the motivation behind the proposal of the concept of cognition flow, provide the definition, discuss the features, behaviours, representations, math- ematical models, and the functions of cognition flow in Cognitive Radio Networks （CRNs）. We also analyse how the cognition flow promotes the convergence of heterogeneous networks. Our group also constructed the test platform to verify the usefulness of cognition flow. The results that were simulated by computers and tested on the platform both confirm that cognition flow can realise efficient interaction of cognitive information among heterogeneous networks in CRNs, which contributes to the seamless convergence of heterogeneous networks, and significantly improves the spectrum efficiency and users＇ Quality of Experience （QoE）.
基金
supported by the National Basic Research Program of China(973 Program)under Grant No.2009CB320400
the National Natural Science Foundation of China under Grants No.61101117,No.61171099
the National Key Scientific and Technological Project of China under Grant No,2012ZX03003-007
the Natural Science Foundation of Jiangxi under Grant No.20132BAB201018
the Fundamental Research Funds for the Central Universities under Grant No.BUPT2012RC0112
