A. Betzler, D. Camps-Mur, E. Garcia-Villegas, I. Demirkol and J. J. Aleixendri, "SODALITE: SDN Wireless Backhauling for Dense 4G/5G Small Cell Networks," in IEEE Transactions on Network and Service Management, vol. 16, no. 4, pp. 1709-1723, Dec. 2019