Opportunities and Challenges of Joint Edge and Fog Orchestration - - PowerPoint PPT Presentation

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Opportunities and Challenges of Joint Edge and Fog Orchestration - - PowerPoint PPT Presentation

Opportunities and Challenges of Joint Edge and Fog Orchestration IEEE Wireless Communications and Networking Luca Cominardi , Osamah Ibrahiem Abdullaziz, Conference, Barcelona Kiril Antevski, Shahzoob Bilal Chundrigar , Robert Gdowski,


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Opportunities and Challenges of Joint Edge and Fog Orchestration

Luca Cominardi, Osamah Ibrahiem Abdullaziz, Kiril Antevski, Shahzoob Bilal Chundrigar , Robert Gdowski, Ping-Heng Kuo, Alain Mourad, Li- Hsing Yen, Aitor Zabala

IEEE Wireless Communications and Networking Conference, Barcelona 15th April 2018

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SLIDE 2

Where are we now in the edge and the fog?

ETSI Network Function Virtualization (NFV)

  • Virtualization

capabilities into mobile

  • perator networks
  • Decouple the network

functions from the underlying hardware

  • Dynamically deploy

network services ETSI Multi-access Edge Computing (MEC)

  • Computing capabilities

close to the end users

  • Hosting environment at

the network edge with low latency and high bandwidth

  • Real-time access to radio

network information

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Mobile operator centric

OpenFog consortium

  • Computing, storage,

control and networking functions closer to the users along a cloud-to- thing continuum

  • Collaborative usage of a

multitude of devices

  • Non-stationary and

volatile devices are considered

Enterprise centric

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SLIDE 3

Edge and Fog synergies and commonalities

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Edge and Fog bring networking and computing capabilities closer to the user Edge and Fog are stand-alone domains that require separate deployments eventually contending for the same physical resources (e.g., spectrum) Poor usage of Edge and Fog resources due to the lack of integration Reduced cost-effectiveness because of the multiple separate physical deployments

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SLIDE 4

Edge and Fog resources and characteristics

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SLIDE 5

Edge and Fog joint orchestration opportunities

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SLIDE 6

Edge and Fog joint orchestration opportunities

Context-aware communications

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Context information from the underlying infrastructure (e.g., computing, networking, storage) enables enhanced network performance Efficient multi-RAT management and coordination algorithms by leveraging on the radio information extracted from each RAT

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SLIDE 7

Edge and Fog joint orchestration opportunities

Resource utilization enhancement

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Distribution of computing and networking tasks across edge and fog resources, including terminals New business models: e.g. terminal devices participate in the pool of edge and fog resources in return of incentives (e.g., subscription reduction)

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SLIDE 8

Edge and Fog joint orchestration opportunities

Efficient operation for resource-constrained devices

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Resource-constrained devices rely on the edge and fog resources to execute computationally and power demanding tasks allowing advanced applications despite their limited capabilities

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SLIDE 9

Edge and Fog joint orchestration opportunities

Flexible and scalable functionalities

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Dynamic allocation of the computing and networking resources to prioritize resources in an area of higher demand leading to optimized resource utilization Concentrate traffic or computing requests to a limited number of resources while

  • thers shift to idle/off mode improving

the energy conservation of the system

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SLIDE 10

Edge and Fog joint orchestration challenges

Federation mechanisms

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Federation is a process where different entities negotiate terms and conditions to form an alliance of trust and start sharing resources between each other Different stakeholders expose different capabilities based on physical constraints and policies determining stakeholders’ degree of trust and conditions Federation solutions are bound to the business perspectives of the stakeholders and need to consider both technical and economic aspects

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SLIDE 11

Edge and Fog joint orchestration challenges

Dynamic discovery of resources

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Fog resources can be mobile and battery-constrained devices and may become (un)available anytime It is key to localize and monitor the available computing and networking resources and to identify the resources that have become available for federation Devices and resources may belong to different owners, have stationary or mobile nature, may have different availability or simply communicate by different protocols

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SLIDE 12

Edge and Fog joint orchestration challenges

Multi-tenancy and security

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Mechanisms to ensure security, isolation, and privacy among tenants are required Admission control based on tenant's needs (SLAs) and current status of the infrastructure Secure exposure of service capabilities and management policies with a standard resource descriptor to the tenants for SLA negotiation Performance monitoring information to the tenants for SLA verification Protection against malicious applications including third-parties

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SLIDE 13

Edge and Fog joint orchestration challenges

Multi-virtualization technology coexistence

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Multiple virtualization techniques available: full-virtualization, hybrid- virtualization, para-virtualization Jeopardized hosting environment because of the multiple virtualization techniques Developers need to package their applications for each target virtualization environment Different virtualization techniques may provide different degrees of security and isolations

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SLIDE 14

Edge and Fog joint orchestration challenges

Dynamic functions and applications placement

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Deploy the functions and applications on integrated edge and fog resources while meeting the necessary SLAs in multi- tenant and federated environments Consider the volatility of the resources in terms of availability: how long the resource will be available to be part of a service? Scaling the resources up and down depending on the load is challenging given the limited and finite compute capacity at the very edge Services/applications need to follow the user as he moves. Migration can be challenging because of the different environments at different locations

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SLIDE 15

Questions?

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Consortium partners and acknowledgment

This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No 761586.

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