Information theory has made great impact on the research of communication systems. However, analyze and design of networks has not benefited too much from information theory. Therefore, in this paper, we propose the information-theoretical framework of context aware network to explore the relationship between the information and the network performance. We also analyze the information traffic process in context aware network. To illustrate our approach, we analyze the architecture of context aware network by the information entropy produced in the network, and discuss the way to improve the performance of context aware in an information-theoretic perspective. The results in this paper may be also used to design other network and guide the future network design.

This paper proposed a novel handoff algorithm for cognitive network based on wavelet analysis and fuzzy control system. It makes the system cognitive and adaptive to the changes of the environment by two steps: first, make wavelet analysis to the received signal to get the basic signal which is without noise. Second, use adaptive neuro-fuzzy inference system (ANFIS) to make diligent handoff decision. The simulation shows that it improves the performance of the whole system when the channel is in low signal-to-noise ratio.

This paper study the current information construction in domestic enterprises, for the lack of timeliness and effectiveness of existing systems in terms of decision making, this paper proposes a program of query analysis system with KPI as a core. Taking the data in business warehouse of ERP system as a data source, this program designs the logic architecture of the system, gives the model of KPI indicators, extracts the relevant KPI, and finally, realizes the program concretely. This system adapts the actual needs of enterprises, and can help them improve the ability of obtaining valuable information, thereby improving the quality and speed of management and decision-making and enhancing the competitiveness of enterprises.