This work is supported by the National Science Fund for Distinguished Young Scholars (No.60725105), the National Natural Science Foundation of China (No.60702057), the Fundamental Research Fund for Central Universities (No.JY10000901030) and the Program for State Key Laboratory of Integrated Service Networks (No.ISN1003002).
We investigate the problem of precoding optimization in an Amplify-and-forward (AF) Multiple- input-multiple-output (MIMO) relay system. Most re- ported works on this problem focus chiefly on the design of relay p...