Zhiguo Ding 0001 Dennis Goeckel Kin K. Leung Don Towsley Application of joint source-relay scheduling to cooperative multiple access channels. 1011-1015 2009 ISIT https://doi.org/10.1109/ISIT.2009.5206073 conf/isit/2009 db/conf/isit/isit2009.html#DingGLT09