Yongquan Qiang Guillaume Vivier Jin Yang Ning Xu Inter-Cell Interference Modeling for OFDMA Systems with Beamforming. 1-5 2008 VTC Fall http://dx.doi.org/10.1109/VETECF.2008.103 conf/vtc/2008f db/conf/vtc/vtc2008f.html#QiangVYX08