Two-way distributed transmission based on the golden code for application in wireless relay networks

In this paper, we consider the use of the Golden Code within two-way transmission over a wireless relay network in the fixed and selected relay cases. Such two-way transmission potentially improves the rate performance over one-way schemes. A four time slot amplify-and-forward (AF) protocol is exploited. Two policies are considered for relay selection, one based on a maximum-minimum strategy and a second using the maximum-mean approach. The combination of relay selection and two-way transmission mitigates the potential loss of diversity and rate in one-way fixed relay Golden Code transmission. End-to-end bit error rate simulations are used to evaluate the performance of the proposed approaches.