@conference{807091, author = {Wei Yu and Hansong Xu and Hanlin Zhang and David Griffith and Nada Golmie}, title = {Ultra-Dense Networks: Survey of State of the Art and Future Directions}, year = {2016}, month = {2016-08-04 00:08:00}, publisher = {The 25th International Conference on Computer Communication and Networks (ICCCN 2016), Waikoloa, HI, US}, url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=920776}, doi = {https://doi.org/10.1109/ICCCN.2016.7568592}, language = {en}, }