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In this paper analysed different spectrum decision methods in a Cognitive radio network. An analytical system model proposed to compare channel selection algorithms by main operational parameters to minimize total system selection time. The considered methods which are based on balancing traffic load can distribute secondary users load to multiple channels, in contradistinction to non-load-balancing...
In this paper considered spectrum mobility techniques for cognitive radio that based on spectrum sensing. Cognitive Radio (CR) is the newest technology to make the secondary users to make use of licensed spectrum in the opportunistic manner. In the proposed structure, politics of switching channel and a proactive spectrum handoff protocol are let cognitive users use a channel before a primary user...
In this paper, spectrum sensing methods analysis and comparison are presented. The spectrum sensing techniques implementation challenges and issues are discussed in detail giving comparative study of various methodologies. The false alarm probability and missed detection probability have been calculated and their dependences are determined.
This paper has proposed the analysis of network traffic real multiservice data network, defines its parameters and properties. A mathematical model to evaluate the quality and time parameters of unit maintenance of network traffic was selected.
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