Luong, N.C.[Luong, N.C.]; Hoang, D.T.[ Hoang, D.T.]; Wang, P.[ Wang, P.]; Niyato, D.[ Niyato, D.]; Kim, D.I.[Kim, D.I.]; Han, Z.[ Han, Z.]
ArticleIssue Date2016CitationIEEE COMMUNICATIONS SURVEYS AND TUTORIALS, v.18, no.4, pp.2546 - 2590PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC