Supported by the National Natural Science Foundation of China (No. 60872049; 60871042; 60971082; 60972073), the National High Technology Research and Development Programme of China (No.2007AA10Z235)and the National Key Basic Research Program of China (No.2009CB320407).
This paper considers a two-user Gaussian interference channel aided by a single relay. Two source-destination pairs and the relay share a single common chaunel, and the relay assists both sources in communicating the ...