A Collection of Contemporary Research Articles in Electronics, Communication & Computation- Book ISBN- 978-81-948050-7-6

Authors: Pravat Biswas, Chandrima Thakur, Ajit Haldar, Sudipta Chattopadhyay

Abstract: 

In this paper, we have proposed a novel scheme of destination-based jamming in a cooperative relay network where a source communicates with the destination via multiple untrusted half-duplex amplify and forward relays in the absence of a direct link. For this purpose, two novel models have been proposed. We have observed the secrecy performances of the network under possible attack scenarios where eavesdropper may be present as a legitimate node in disguise. We have also developed a simulation testbed to evaluate the secrecy outage probability. Moreover, the secrecy outage probabilities of our proposed schemes have been analyzed with respect to several network parameters such as target secrecy rate; transmit power of the source, jamming power by destination and mean power of the fading channel. This paper gives us a guideline to choose an optimized model from a network with multiple trusted and untrusted relays.

Keywords: Amplify and forward relay, Fading, Jamming, Relay networks, Secrecy outage, Wireless channel.