Improving Security Rate with Cognitive Radio Networks Using Cooperative Secure Resource Allocation
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2015, Vol 3, Issue 2
Abstract
A secure communication in cognitive radio networks, where the secondary users are allowed to access the spectrum of the primary users as long as they preserve the secure communication of PU in the presence of malicious eavesdroppers. The secondary users will uses the two hops in which the secondary user will act as a relay set and the friendly jammer for the primary user and the eavesdroppers. In this new setup, the time duration for each hop, the power transmissions of all nodes in CRN, and relay selection at the second hop are allocated in such a way that the secrecy rate of the SU is maximized subject to the minimum required PU’s secrecy rate. I use the digital signature algorithm for wireless system and optimize the power allocation, time allocation and relay selection problems. I also provide an intrusion detection system to detect the users who act as a false transmitter or receiver. The power allocation problem can be transformed into generalized geometric programming (GGP) model via scaled algorithm and it can be solved very efficiently.
Authors and Affiliations
Saranya M, Vinayagam T. A, Divya M
Keywords
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