Jouko Leinonen, Taneli Riihonen, Jyri Hämäläinen, Markku J. Juntti. Subchannel Allocation in Relay-Enhanced OFDMA Downlink with Imperfect Feedback. In Proceedings of the Global Communications Conference, 2009. GLOBECOM 2009, Honolulu, Hawaii, USA, 30 November - 4 December 2009. pages 1-6, IEEE, 2009. [doi]