Laoudias, Christos; Moreira, Adriano; Kim, Sun woo; Lee, Sangwoo; Wirola, Lauri; Fischione, Carlo
ArticleIssue Date2018CitationIEEE COMMUNICATIONS SURVEYS AND TUTORIALS, v.20, no.4, pp.3607 - 3644PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC