HL Jiang, E Tong, ZH Li,
NQ Phan, ZW Pan… - Science China …, 2015 - Springer
… Clustering and resource allocation for dense femtocells in a two-tier cellular OFDMA network.
IEEE Trans Wirel Commun, 2014, 13: 1628–1641 18 Yang L, Wen P P. Location based …