Media type: E-Article Title: Flexible Backhauling With Massive MIMO for Ultra-Dense Networks Contributor: Kela, Petteri; Costa, Mario; Turkka, Jussi; Leppanen, Kari; Jantti, Riku imprint: Institute of Electrical and Electronics Engineers (IEEE), 2016 Published in: IEEE Access Language: Not determined DOI: 10.1109/access.2016.2634039 ISSN: 2169-3536 Origination: Footnote: Access State: Open Access