1 research outputs found
Secrecy Outage Probability of Network-Coded Cooperative Communication
We evaluate the secrecy performance of a multiple access cooperative network
where the destination node is wiretapped by a malicious and passive
eavesdropper. We propose the application of the network coding technique as an
alternative to increase the secrecy at the destination node, on the top of
improving the error performance of the legitimate communication, already
demonstrated in the literature. Network coding is leveraged by assuming that
the legitime cooperative nodes are able to perform non-binary linear
combinations of different frames before the transmission. Different scenarios
with and without channel state information (CSI) at the transmitter side are
evaluated. The effectiveness of the proposed schemes is evaluated in terms of
secrecy outage probability through theoretic and numerical analyses. It is
shown that, even when the legitimate transmitters do not have any CSI, the
secrecy can be increased through the use of network coding when compared to the
direct transmission and traditional cooperative techniques.Comment: Submitte