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Self-Motivated Frequency Selection method for Mobile Security

The recent scenario in wireless communication, the frequency tapping danger grows bigger and the frequency security is also important issue. Dynamic frequency selection (DFS) technique has the strength in frequency security because it uses variable frequency. In this paper, we investigate DFS technique in IEEE 802.22 standards for environment of Cognitive radio (CR) foundation for the security. To use frequency more powerfully, we propose some DFS techniques for variable bandwidth, limitation of candidate set and verify these through the result of the simulations.