scholarly journals CoNTe: A Core Network Temporal Blockchain for 5G

Sensors ◽  
2020 ◽  
Vol 20 (18) ◽  
pp. 5281
Author(s):  
Steven Platt ◽  
Luis Sanabria-Russo ◽  
Miquel Oliver
Keyword(s):  
Paradigm Shift ◽  
Virtual Network ◽  
Core Network ◽  
Network Function ◽  
Distributed Ledger ◽  
Distributed Ledger Technology ◽  
Network Operations ◽  
Network Functions ◽  
Network Functionality ◽  
Virtual Network Function

Virtual Network Functions allow the effective separation between hardware and network functionality, a strong paradigm shift from previously tightly integrated monolithic, vendor, and technology dependent deployments. In this virtualized paradigm, all aspects of network operations can be made to deploy on demand, dynamically scale, as well as be shared and interworked in ways that mirror behaviors of general cloud computing. To date, although seeing rising demand, distributed ledger technology remains largely incompatible in such elastic deployments, by its nature as functioning as an immutable record store. This work focuses on the structural incompatibility of current blockchain designs and proposes a novel, temporal blockchain design built atop federated byzantine agreement, which has the ability to dynamically scale and be packaged as a Virtual Network Function (VNF) for the 5G Core.

A Recommendation Approach using Forwarding Graph to Analyze Mapping Algorithms for Virtual Network Functions

2019 ◽  
Vol 12 ◽  
Author(s):  
Lyes Bouali ◽  
Selma Khebbache ◽  
Samia Bouzefrane ◽  
Mehammed Daoui
Keyword(s):  
Virtual Network ◽  
Search Procedure ◽  
Adaptive Search ◽  
Mapping Algorithms ◽  
Network Function ◽  
Np Hard Problem ◽  
Substrate Network ◽  
Network Functions ◽  
Cost Efficient ◽  
Virtual Network Function

: The advent of Network Functions Virtualization (NFV) has revolutionized numerous network based applications due to its score of benefits such as flexibility, agility, scalability and Multi-tenancy. In this paper, we focus on the mapping of Virtual Network Function Forwarding Graphs (VNF-FGs) on a Substrate Network. To cope with this NP-Hard problem, we designed an algorithm based on Greedy Randomized Adaptive Search Procedure (GRASP), a cost-efficient meta-heuristic algorithm, in which the main objective is to minimize the mapping cost. Another method named MARA (Most Available Resource Algorithm) was devised with the objective of reducing the Substrate Network’s resources use at the bottleneck clusters. Performance analysis based on simulations are given to show the behavior and efficiency of our approaches.

scholarly journals Decentralized Certificate Management for Network Function Virtualisation (NFV) Implementation in Telecommunication Networks

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Junzhi Yan ◽  
Na Li ◽  
Bo Yang ◽  
Min Li ◽  
Li Su ◽  
...  
Keyword(s):  
Telecommunication Networks ◽  
Virtual Network ◽  
Core Network ◽  
5G Networks ◽  
Enabling Technology ◽  
Management Mechanism ◽  
Network Function ◽  
Network Functions ◽  
Certificate Management ◽  
Network Function Virtualisation

The certificate management complexity and cost increase when PKI technology is leveraged into Network Function Virtualisation (NFV), a significant enabling technology for 5G networks. The expected security of PKI cannot be met due to the unavailability of the certificate revocation inquiry in the telecommunication operator’s core network. This paper analyses the issues and challenges during the NFV implementation and proposes a blockchain-based decentralized NFV certificate management mechanism. During instantiation, the Virtual Network Functions (VNF) instance generates certificates according to the certificate profile provided in the VNF package. The certificate management unit is responsible for the certificate enrolment, renewal, and revocation. The certificates submitted to the decentralized certificate management system by the instance will be recorded into the ledger after validation and consensus. The experiment and analysis show the transaction throughput, and the transaction delay is noncritical in practice, which could be fulfilled by the proposed mechanism. The certificate inquiry performance is critical, which can be facilitated by the decentralized deployment of inquiry nodes.

A Translator as Virtual Network Function for Network Level Interoperability of Different IoT Technologies

2021 ◽  
Author(s):  
Sisay Tadesse Arzo ◽  
Francesco Zambotto ◽  
Fabrizio Granelli ◽  
Riccardo Bassoli ◽  
Michael Devetsikiotis ◽  
...  
Keyword(s):  
Virtual Network ◽  
Network Function ◽  
Virtual Network Function
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