Secure Communication in Physical Layer through Cooperative Relay Networks
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2017, Vol 5, Issue 5
Abstract
Nowadays, increasing number of wireless users because of the mobility and comfort in the wireless communication leads to security issues. For security of wireless systems, cryptography techniques, which are higher layer security techniques, are preferred in many systems. But with the invention of ad-hoc networks and decentralized networks, the higher layer security techniques are difficult to implement. In order to reduce the burden of the higher layers of the network, the security by exploiting the characteristics of the physical layer has been implemented. Cooperative relay networks improve the reliability of the network. Amplify and Forward (AF) is the scheme of cooperative relay networks, which is simulated and the performance of this system is improved when compared to the systems which are not employing the cooperative communication. AF protocol is preferred since it is the one which does not involves any decoding operations at the relay, makes the transmission characteristics to be simple.
Authors and Affiliations
Ponselvi S, Dr. V. Seethalakshmi
Keywords
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