Blockchain-based Secured and Federated Slice Broker (SFSBroker)

Network slicing is a versatile and distinguishing capability of the 5th and 6th Generation (5G & 6G) mobile networks. Network slicing enables the consumers to deliver individualized and customized telecommunication services on the commonly shared infrastructure. Slice brokering is the dedicated service to facilitate the tenants and resource providers in slice allocation process. We proposed SFSBroker (Secured and Federated Slice Broker) to leverage the slice brokering process with the application of game theory. We formulated the optimal slice selection problem into the Stackelberg game model. The computational logic has been incorporated on smart contracts. Furthermore, the proposed architecture includes Security Service Blockchain (SSB) which has been integrated for Denial of Service (DoS) attack prevention. We implemented the end to end setup including tenant request to slice creation using Hyperledger Fabric blockchain, Katana slice manager, and OpenStack. In this demonstration, the system provisions to obtain hands-on experience on the end to end workflow of slice brokering process.