Joint Channel-Network Coding for the Gaussian Two-Way Two-Relay Network

New aspects arise when generalizing two-way relay network with one relay to two-way relay network with multiple relays. To study the essential features of the two-way multiple-relay network, the authors focus on the case of two relays in their work. The problem of how two terminals, equipped with multiple antennas, exchange messages with the help of two relays is studied. Five transmission strategies, namely, Amplify-Forward (AF), Hybrid decode amplify forward (HLC), Hybrid decode amplify forward (HMC), Decode Forward (DF), and Partial Decode Forward (PDF), are proposed.