S.M. ChengW.C. AoK.C. ChenKWANG-CHENG CHEN2018-09-102018-09-102010-01http://scholars.lib.ntu.edu.tw/handle/123456789/359501Downlink Capacity of Two-tier Cognitive Femto Networksconference paper10.1109/PIMRC.2010.56720172-s2.0-78751517803