Qing Chen Fei Ye Zhisheng Niu Graph Theoretical Analysis of Opportunistic Scheduling Policy for Wireless Ad Hoc Networks. 780-784 2007 GLOBECOM http://dx.doi.org/10.1109/GLOCOM.2007.151 conf/globecom/2007 db/conf/globecom/globecom2007.html#ChenYN07