Nan Zhou 0001 Xu Zhu 0001 Yi Huang 0001 Asymmetric Resource Allocation for Multi-Destination Relay Systems. 1-5 2011 GLOBECOM https://doi.org/10.1109/GLOCOM.2011.6133814 conf/globecom/2011 db/conf/globecom/globecom2011.html#ZhouZH11