1. 3GPP (2019) GPRS Tunnelling Protocol (GTP) across the Gn and Gp interface. Technical report (TR). Version 15.5.0
2. 3GPP (2019) Release 15 description; summary of Rel-15 work items. Technical report (TR). Version 15.0.0
3. 3GPP (2020) System architecture for the 5G System (5GS). Technical report (TR). Version 15.12.0
4. Agilent Technologies, Inc. (2006) Understanding DSLAM and BRAS access devices. White Paper
5. Alam I, Sharif K, Li F, Latif Z, Karim MdM, Biswas S, Nour B, Wang Y (2020) A survey of network virtualization techniques for Internet of Things using SDN and NFV. ACM Comput Surv (CSUR) 53(2):1–40