IoT-B&B: Edge-Based NFV for IoT Devices with CPE Crowdsourcing

Figure 1

The system architecture is extended from ETSI NFV architecture and interfaces [9]. It has a resource manager integrated with NFVI to schedule VNF placement, leveraging the VNF-B&B algorithm. The architecture enables pCPE resources to be part of the NFVI along with cloud host servers, where each pCPE node can have VNFs deployed for multiple users in the edge network. For instance, when pCPE-B needs more VNFs to handle its overloaded use, they can be deployed on both pCPE-A (VNF-B3) and the cloud (VNF-B4).