@conference{EURECOM+5826, author = {Liakopoulos, Nikolaos and Paschos, Georgios and Spyropoulos, Thrasyvoulos}, title = {User association for ultra dense networks with QoS guarantees}, booktitle = {GLOBECOM 2018, IEEE Global Communications Conference, 9-13 December 2018, Abu Dhabi, UAE}, year = {2018}, editor = {IEEE}, address = {Abu Dhabi}, note = {© 2018 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.}, }