T. Owens Walker III Murali Tummala John C. McEachen Traffic-adaptive, flow-specific medium access control for wireless networks. 1926-1931 2009 WCNC https://doi.org/10.1109/WCNC.2009.4917999 conf/wcnc/2009 db/conf/wcnc/wcnc2009.html#WalkerTM09