Maximizing the minimum achievable secrecy rate of two-way relay networks using the null space beamforming method.

This study concerns maximising the minimum achievable secrecy rate (ASR) of a two-way relay network in the presence of an eavesdropper, in which two nodes aim to exchange messages in two hops, using a multi-antenna relay. Throughout the first hop, the two nodes simultaneously transmit their messages to the relay. In the second hop, the relay broadcasts a combination of the received information to ...