Mohammad Nassiri Martin Heusse Andrzej Duda A Novel Access Method for Supporting Absolute and Proportional Priorities in 802.11 WLANs. 709-717 2008 INFOCOM http://dx.doi.org/10.1109/INFOCOM.2008.121 conf/infocom/2008 db/conf/infocom/infocom2008.html#NassiriHD08