Joint relay selection and power allocation algorithm in two-way relay networks with proportional fair constraint
DING Yi, LIU Yuan-an, XIE Gang, DENG Pan-liang, LI Xing-zhen
Acta Metallurgica Sinica(English letters) . 2011, (4): 45 -51 .  DOI: 10.1016/S1005-8885(10)60082-9