A review on secrecy performance of cooperative relay network with diversity
by Khyati Chopra
International Journal of Internet Technology and Secured Transactions (IJITST), Vol. 11, No. 4, 2021

Abstract: In the past few years, there has been a rapid increase in demand on transmitting data over the open wireless medium. Severe issues of information security and privacy thus arise, as the wireless transmissions may be intercepted by any unintended receiver in the network. There is a need to design the transmission system in an efficacious way, such that the available space and time can be used adequately. This becomes a challenging job as there are random variations in the channel quality due to deleterious effects of the multi-path fading. Hence, to improve the transmission reliability, coverage probability and throughput, relay aided communication draw in great attention from both academia and industry. Relays provide the advantage of cooperative diversity, where the directly transmitted signal and the relayed signal can be combined at the receiver using various diversity combining schemes to mitigate the fading effect. In this paper, we review the secrecy performance of dual-hop cooperative relay system with diversity reception and relay selection. The significance and secrecy effect of channel knowledge at the transmitter is also studied. We have corroborated that CSI knowledge at the transmitter can improve secrecy.

Online publication date: Sun, 01-Aug-2021

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