network functions virtualization (nfv): research trends ... · network functions virtualization...
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Network Functions Virtualization (NFV): Research Trends and Market Opportunities
Muriel Figueredo FrancoDepartment of Informatics IfI, Communication Systems Group CSG,
University of Zürich [email protected]
DEVCONF 2019, January 25 - 27, Brno, Czech Republic
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Agenda
Introduction General Challenges Research Trends Market Opportunities Conclusions
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Basics
A Network Function is …
– … determined as a network node or physical appliances (middleboxes) with a well-defined functional behavior• Security: IDS, Firewall, IPS, DPI• Performance: Video Cache, Proxy, QoE Monitor, Load Balancer• Translating: NAT, DNS• Connection: Router, Gateway, MME, SGW, PGW
– ... able to execute crucial actions in the network infrastructure to guarantee the service provisioning
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Introduction (1)
4
ServicesMiddleboxes
User
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Introduction (2)
Additionally a Network Function Virtualization (NFV) …
– … decouples packet processing from dedicated hardware middleboxes for Virtual Network Functions (VNF) running on commercial off-the-shelf-servers
– ... show main benefits, since it can virtualize network services and, thus, enables operators to:• Deliver agility and flexibility• Accelerate time-to-market• Reduce costs (Both CAPEX and OPEX)
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Introduction (2)
Additionally a Network Function Virtualization (NFV) …
– … decouples packet processing from dedicated hardware middleboxes for Virtual Network Functions (VNF) running on commercial off-the-shelf-servers
– ... show main benefits, since it can virtualize network services and, thus, enables operators to:• Deliver agility and flexibility• Accelerate time-to-market• Reduce costs (Both CAPEX and OPEX)
6
But it is not simple!
Efforts are required to provide an efficient deploy, orchestration, and management of VNFs
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ETSI Standard for NFV
The European Telecommunications Standards Institute (ETSI) released the NFV white paper in October 2012 [1]
Additional documents are available to define the NFV environment – Use Cases (ETSI GS NFV 001)
• in 2013 [2]
– Architectural Framework (ETSI GS NFV 002) • in 2013 [3]
– Management and Orchestration (ETSI GS NFV-MAN 001) • in 2014 [4]
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NFV Architecture
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Source: ETSI [3]
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NFV Architecture
9
Source: ETSI [3]
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General Challenges
PlacementManagement and Orchestration
Security
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General Challenges
Placement– Where is the best place to deploy a VNF or a SFC?
• Latency, QoS, resources available, and moneraty costs should be considered
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VNF: Virtual Network Function, SFC: Service Function Chaining
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©2019 UZH, CSG@IFI
General Challenges
Placement– Where is the best place to deploy a VNF or a SFC?
• Latency, QoS, resources available, and moneraty costs should be considered
Management and Orchestration– How to orchestrate and monitor VNFs? When migrate it?– Techniques to identify misbehaviors, bottlenecks, and other
VNF-related problems
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VNF: Virtual Network Function, SFC: Service Function Chaining
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©2019 UZH, CSG@IFI
General Challenges
Placement– Where is the best place to deploy a VNF or a SFC?
• Latency, QoS, resources available, and moneraty costs should be considered
Management and Orchestration– How to orchestrate and monitor VNFs? When migrate it?– Techniques to identify misbehaviors, bottlenecks, and other
VNF-related problems Security
– Trust communication among NFV components– Interoperability integrity among differents vendors– Threats and Countermeasures
13
VNF: Virtual Network Function, SFC: Service Function Chaining
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Research Trends (RT)
Management and Orchestration-relatedNFV/5G NetworksBusiness Models
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RT: Management and Orchestration (1)
Management and orchestration issues are still key of a considerable number of aproaches for NFV– Identify performance bottlenecks
15
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©2019 UZH, CSG@IFI
RT: Management and Orchestration (1)
Management and orchestration issues are still key of a considerable number of aproaches for NFV – Identify performance bottlenecks
• Real-time monitoring solutions [5] [6]
16
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RT: Management and Orchestration (1)
Management and orchestration issues are still key of a considerable number of aproaches for NFV– Identify performance bottlenecks
• Real-time monitoring solutions [5] [6]
17
Naik et. al “NFVPerf: Online Performance Moni-toring and Bottleneck Detection for NFV”, IEEE NFV-SDN 2016
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©2019 UZH, CSG@IFI
RT: Management and Orchestration (1)
Management and orchestration issues are still key of a considerable number of aproaches for NFV– Identify performance bottlenecks
• Real-time monitoring solutions [5] [6]
18
Bonfim et. al “Identifying Performance Bottlenecks in Software Data Planes for Cloud-based NFV Services”, IFIP/IEEE NOMS 2018
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©2019 UZH, CSG@IFI
RT: Management and Orchestration (1)
Management and orchestration issues are still key of a considerable number of aproaches for NFV– Identify performance bottlenecks
• Real-time monitoring solutions [5] [6]• Machine Learning [7] [8]
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©2019 UZH, CSG@IFI
RT: Management and Orchestration (1)
Management and orchestration issues are still key of a considerable number of aproaches for NFV– Identify performance bottlenecks
• Real-time monitoring solutions [5] [6]• Machine Learning [7] [8]
20
Ayoubi et. al “Machine Learning for Cognitive Network Management”, IEEE Communications Magazine, January 2018
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©2019 UZH, CSG@IFI
RT: Management and Orchestration (1)
Management and orchestration issues are still key of a considerable number of aproaches for NFV– Identify performance bottlenecks
• Real-time monitoring solutions [5] [6]• Machine Learning [7] [8]
21
Pfitscher et. al “A Model for Quantifying Performance Degradation in Virtual Network Function Service Chains”, IFIP/IEEE NOMS 2018
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RT: Management and Orchestration (2)
Management and orchestration issues are still key of a considerable number of aproaches for NFV– Composition of SFC
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©2019 UZH, CSG@IFI
RT: Management and Orchestration (2)
Management and orchestration issues are still key of a considerable number of aproaches for NFV– Composition of SFC
• Dynamic and secure composition [9] [10]
23
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©2019 UZH, CSG@IFI
RT: Management and Orchestration (2)
Management and orchestration issues are still key of a considerable number of aproaches for NFV– Composition of SFC
• Dynamic and secure composition [9] [10]
24
Mechtri et. al “NFV Orchestration Framework Addressing SFC Challenges”, IEEE Communications Magazine, June 2017
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©2019 UZH, CSG@IFI
RT: Management and Orchestration (2)
Management and orchestration issues are still key of a considerable number of aproaches for NFV– Composition of SFC
• Dynamic and secure composition [9] [10]
25
Yurchenko et. al “OpenNetVM: A Platform for High Per-formance NFV Service Chains”, ACM SIGCOMM 2018
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©2019 UZH, CSG@IFI
RT: Management and Orchestration (2)
Management and orchestration issues are still key of a considerable number of aproaches for NFV– Composition of SFC
• Dynamic and secure composition [9] [10]• Validation [11] [12]
26
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©2019 UZH, CSG@IFI
RT: Management and Orchestration (2)
Management and orchestration issues are still key of a considerable number of aproaches for NFV– Composition of SFC
• Dynamic and secure composition [9] [10]• Validation [11] [12]
27
Eichelberger et. al “SFC Path Tracer: A Troubleshooting Tool for Service Function Chaining”, IFIP/IEEE IM 2017
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©2019 UZH, CSG@IFI
RT: Management and Orchestration (2)
Management and orchestration issues are still key of a considerable number of aproaches for NFV– Composition of SFC
• Dynamic and secure composition [9] [10]• Validation [11] [12]
28
Peuster et. al “Containernet 2.0: A Rapid Prototyping Platform for Hybrid Service Function Chains”, IEEE NetSoft 2018
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RT: Management and Orchestration (3)
Management and orchestration issues are still key of a considerable number of aproaches for NFV– Placement, Migration, and Resource allocation
29
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©2019 UZH, CSG@IFI
RT: Management and Orchestration (3)
Management and orchestration issues are still key of a considerable number of aproaches for NFV– Placement, Migration, and Resource allocation
• Performance optimization and resource management [13] [14]
30
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©2019 UZH, CSG@IFI
RT: Management and Orchestration (3)
Management and orchestration issues are still key of a considerable number of aproaches for NFV– Placement, Migration, and Resource allocation
• Performance optimization and resource management [13] [14]
31
Yasukata et. al “HyperNFV: Building a High Performance, High Utilization and Fair NFV Platform”, ACM SoCC 2017
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©2019 UZH, CSG@IFI
RT: Management and Orchestration (3)
Management and orchestration issues are still key of a considerable number of aproaches for NFV– Placement, Migration, and Resource allocation
• Performance optimization and resource management [13] [14]
32
Eramo et. al “Computing and Bandwidth Resource Allocation in Multi-Provider NFV Environment”, IEEE Communications Letters, October 2018
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©2019 UZH, CSG@IFI
RT: Management and Orchestration (3)
Management and orchestration issues are still key of a considerable number of aproaches for NFV– Placement, Migration, and Resource allocation
• Performance optimization and resource management [13] [14]• Costs and energy savings [15] [16]
33
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©2019 UZH, CSG@IFI
RT: Management and Orchestration (3)
Management and orchestration issues are still key of a considerable number of aproaches for NFV– Placement, Migration, and Resource allocation
• Performance optimization and resource management [13] [14]• Costs and energy savings [15] [16]
34
Zeng et. al “Cost Efficient State-Aware Function Placement and Flow Scheduling for NFV Networks”, IEEE SmartWorld 2018
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©2019 UZH, CSG@IFI
RT: Management and Orchestration (3)
Management and orchestration issues are still key of a considerable number of aproaches for NFV– Placement, Migration, and Resource allocation
• Performance optimization and resource management [13] [14]• Costs and energy savings [15] [16]
35
Xu et. al “Energy-Efficient Virtual Network Function Place-ment in Telecom Networks”, IEEE ICC 2018
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RT: NFV as a 5G Enabler
NFV as a enabler for 5G Networks and IoT– Frameworks for management and deployment of service
based on 5G core networks
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©2019 UZH, CSG@IFI
RT: NFV as a 5G Enabler
NFV as a enabler for 5G Networks and IoT– Frameworks for management and deployment of service
based on 5G core networks• Split network elements into VNFs to meet new requirements in 5G era
[17]
37
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©2019 UZH, CSG@IFI
RT: NFV as a 5G Enabler
NFV as a enabler for 5G Networks and IoT– Frameworks for management and deployment of service
based on 5G core networks• Split network elements into VNFs to meet new requirements in 5G era
[17]• Realistic use cases for 5G access network [18]
38
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©2019 UZH, CSG@IFI
RT: NFV as a 5G Enabler
NFV as a enabler for 5G Networks and IoT– Frameworks for management and deployment of service
based on 5G core networks• Split network elements into VNFs to meet new requirements in 5G era
[17]• Realistic use cases for 5G access network [18]
– Performance to sustain new applications in 5G era
39
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©2019 UZH, CSG@IFI
RT: NFV as a 5G Enabler
NFV as a enabler for 5G Networks and IoT– Frameworks for management and deployment of service
based on 5G core networks• Split network elements into VNFs to meet new requirements in 5G era
[17]• Realistic use cases for 5G access network [18]
– Performance to sustain new applications in 5G era• Edge computing for Lowering latency of 4K Video Streaming [19]
40
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©2019 UZH, CSG@IFI
RT: NFV as a 5G Enabler
NFV as a enabler for 5G Networks and IoT– Frameworks for management and deployment of service
based on 5G core networks• Split network elements into VNFs to meet new requirements in 5G era
[17]• Realistic use cases for 5G access network [18]
– Performance to sustain new applications in 5G era• Edge computing for Lowering latency of 4K Video Streaming [19]• NFV to support mobile edge computing and provide a extremely fast
service acess to user equipment [20]
41
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RT: Business Perspectives
Business models should be improved– Auctions, fixed-price, pay-as-you-go– Solutions to maximize the social welfare, which include
benefits for end-users, service providers and infrastructure providers
42
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©2019 UZH, CSG@IFI
RT: Business Perspectives
Business models should be improved– Auctions, fixed-price, pay-as-you-go– Solutions to maximize the social welfare, which include
benefits for end-users, service providers and infrastructure providers
NFV as a Service– Infrastructure Supply– Distribution and Instantiation of VNFs [21] [22]
43
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©2019 UZH, CSG@IFI
RT: Business Perspectives
Business models should be improved– Auctions, fixed-price, pay-as-you-go– Solutions to maximize the social welfare, which include
benefits for end-users, service providers and infrastructure providers
NFV as a Service– Infrastructure Supply– Distribution and Instantiation of VNFs [21] [22]
44
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Market Forecast
45
USD ~5 billion 2017
USD ~71 billion 2024
Source: Global Market Insights
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Market Forecast
46
Sector Percentage
IT and Telecom 33.42%
BFSI 21.06%
Healthcare 13.63%
Retail and Consumer Goods 11.15%
Government 8.34%
Manufacturing 7.71%
Others 4.69%
USD ~5 billion 2017
USD ~71 billion 2024
Source: Global Market Insights
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Market Forecast
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Sector Percentage
IT and Telecom 33.42%
BFSI 21.06%
Healthcare 13.63%
Retail and Consumer Goods 11.15%
Government 8.34%
Manufacturing 7.71%
Others 4.69%
USD ~5 billion 2017
USD ~71 billion 2024
Hardware - 48.21%Software - 37.02%Service -14.77% Source: Global Market Insights [3]
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Market Opportunities
VNF-as-a-ServiceInfrastructure Supply
Smart Cities and IoT Applications
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VNF-as-a-Service
Marketplaces for VNFaaS– Developers
• Development of innovative services
– End-Users• Contract services on demmand
– Service Providers• Build profitable business models to offer, distribute and manage VNFs
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Infrastructure Supply
NFV-enabled Infrastructures available to sustain high specific demands from each end-user
Infrastructure Providers can be paid– Provide the substrate– Ensure the resources to deal with dynamic demands of a
contracted services (e.g., a DPI should require more resources than a simple Firewall)
– Monitoring and problem identification
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Smart Cities and IoT Applications
Costs reduction, Scalability and Agility to sustain needs and trends of future digital societies– E.g., Sensor Networks, Vehicular Networks, Healthcare
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Future Steps
NFV fully operational in the next years– Integrating with the Software-defined Networks (SDN)– Ultra-low latency and dynamic applications will fastly
delivered to network edge and end-users– Cyberattacks will become more complex and sophisticated
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Future Steps
NFV fully operational in the next years– Integrating with the Software-defined Networks (SDN)– Ultra-low latency and dynamic applications will fastly
delivered to network edge and end-users– Cyberattacks will become more complex and sophisticated
NFV can take advantage from the Blockchain hype– Auditing, accouting and trustworthy without need to each
node (e.g., VNF and NFVI) rely in a central authority
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©2019 UZH, CSG@IFI
Future Steps
NFV fully operational in the next years– Integrating with the Software-defined Networks (SDN)– Ultra-low latency and dynamic applications will fastly
delivered to network edge and end-users– Cyberattacks will become more complex and sophisticated
NFV can take advantage from the Blockchain hype– Auditing, accouting and trustworthy without need to each
node (e.g., VNF and NFVI) rely in a central authority More solutions to simplify the life cycle management of
a huge number of VNFs– Artificial inteligence and Information Visualization
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References
[1] ETSI NFV ISG. Network Functions Virtualization. White Paper. 2012.
Available at https://goo.gl/b46Fi8 Accessed in January 2019.
[2] ETSI GS NFV. Network Functions Virtualization (NFV). Use Cases. 2013.
Available at https://goo.gl/QKN9E8 Accessed in January 2019.
[3] ETSI GS NFV. Network Functions Virtualization (NFV); Architectural
Framework. 2013. Available at https://goo.gl/efNydY Accessed in January
2019.
[4] ETSI GS NFV-MAN. Network Functions Virtualization (NFV); Management
and Orchestration. 2014. Available at https://goo.gl/2ugcJV Accessed in January
2019.
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References
[5] P. Naik, D. K. Shaw and M. Vutukuru, "NFVPerf: Online performance
monitoring and bottleneck detection for NFV," 2016 IEEE Conference on
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[6] M. Bonfim, R. Roque, E. Coutinho, K. Dias and S. Fernandes, "Identifying
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[7] S. Ayoubi et al., "Machine Learning for Cognitive Network Management," in
IEEE Communications Magazine, vol. 56, no. 1, pp. 158-165, Jan. 2018.
57
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References
[8] R. J. Pfitscher et al., "A model for quantifying performance degradation in
virtual network function service chains," in NOMS 2018 - 2018 IEEE/IFIP
Network Operations and Management Symposium, Taipei, 2018, pp. 1-9.
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[10] Mykola Yurchenko, Patrick Cody, Aaron Coplan, Riley Kennedy, Timothy
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References
[11] R. A. Eichelberger, T. Ferreto, S. Tandel and P. A. P. R. Duarte, "SFC Path
Tracer: A troubleshooting tool for Service Function Chaining," in 2017 IFIP/IEEE
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[13] Kenichi Yasukata, Felipe Huici, Vincenzo Maffione, Giuseppe Lettieri, and
Michio Honda. 2017. HyperNF: building a high performance, high utilization and
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References
[14] V. Eramo and F. G. Lavacca, "Computing and Bandwidth Resource
Allocation in Multi-Provider NFV Environment," in IEEE Communications
Letters, vol. 22, no. 10, pp. 2060-2063, Oct. 2018.
[15] D. Zeng, L. Gu, Y. Chen, S. Pan and Z. Qian, "Cost Efficient State-Aware
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Computing, Internet of People and Smart City Innovation
(SmartWorld/SCALCOM/UIC/ATC/CBDCom/IOP/SCI), Guangzhou, China,
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References
[16] Z. Xu, X. Zhang, S. Yu and J. Zhang, "Energy-Efficient Virtual Network
Function Placement in Telecom Networks," in 2018 IEEE International
Conference on Communications (ICC), Kansas City, MO, 2018, pp. 1-7.
[17] L. Ma, X. Wen, L. Wang, Z. Lu and R. Knopp, "An SDN/NFV based
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in China Communications, vol. 15, no. 10, pp. 86-98, Oct. 2018.
[18] J. Pedreno-Manresa, P. S. Khodashenas, M. S. Siddiqui and P. Pavon-
Marino, "On the Need of Joint Bandwidth and NFV Resource Orchestration: A
Realistic 5G Access Network Use Case," in IEEE Communications Letters, vol.
22, no. 1, pp. 145-148, Jan. 2018.
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References
[19] L. Van Ma, V. Q. Nguyen, J. Park and J. Kim, "NFV-Based Mobile Edge
Computing for Lowering Latency of 4K Video Streaming," in 2018 Tenth
International Conference on Ubiquitous and Future Networks (ICUFN), Prague,
2018, pp. 670-673.
[20] Y. Nam, S. Song and J. Chung, "Clustered NFV Service Chaining
Optimization in Mobile Edge Clouds," in IEEE Communications Letters, vol. 21,
no. 2, pp. 350-353, Feb. 2017.
[21] G. Xilouris et al., "T-NOVA: Network functions as-a-service over virtualised
infrastructures," in 2015 IEEE Conference on Network Function Virtualization
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References
[22] L. Bondan et al., "FENDE: Marketplace-Based Distribution, Execution, and
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[23] Global Market Insights. Network Function Virtualization (NFV) Market.
2018. Available at https://goo.gl/XCjtEH Accessed in January 2019
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