Transcript Document

Thoughts on Future Networking and Network
Management for Ubiquitous Media Delivery
Dr. Ning Wang
Centre for Communication Systems Research
University of Surrey
Guildford
United Kingdom
http://www.ee.surrey.ac.uk/personal/n.wang/
EC Consultation Workshop on Networked Media Research, 19/01/10
Major Challenges
•
Innovation of healthier business models for ubiquitous
media/content delivery at Internet scale
•
Future media/content provisioning and handling
solutions
- New networking paradigms for ubiquitous
media/content delivery
- Media-network management (MNM) integration
•
Other issues and requirements
EC Consultation Workshop on Networked Media Research, 19/01/10
Overview
New business models
for a media-centric Internet
New paradigms for media provisioning and handling
Media-centric
networking platforms
Integrated media-network
management (MNM)
Requirements and issues
(Security, QoS, energy-efficiency, …)
EC Consultation Workshop on Networked Media Research, 19/01/10
Business Model Innovation
•
Current situation
- Limited business opportunities for stakeholders (ISPs, content
providers, service providers, end users…)
- The Internet was originally designed based on the model of host-to-host
communications rather than content/media access and delivery
•
Making business models healthier
- To allow diverse channels for creating revenues for a variety of
stakeholders
- In particular, to encourage end users to seek business opportunities in
providing both media creation and delivery services
•
Innovation from EU research projects will put Europe in a globally
leading position
EC Consultation Workshop on Networked Media Research, 19/01/10
Media-centric Network Platforms
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Overlay based network platforms on top of the “dumb” Internet
- Incremental schemes, e.g. existing CDN based solutions
- To add dedicated application-layer content/media handling functions
(as patches) where necessary
•
Radical approaches for natively enabling ubiquitous
media/content delivery with intrinsic functions
- Disruptive paradigms with intrinsic functions for supporting large-scale
media/content delivery
- Native content resolution, naming/address, routing protocols to take the
place of existing IP/DNS based schemes
•
Network virtualisation for media/content delivery?
- To enable smooth migration from overlay-based approaches to future
revolutionary solutions
- To deal with different types of media/content as well as heterogeneous
QoS requirements
EC Consultation Workshop on Networked Media Research, 19/01/10
Integrated Media-Network Management
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Network resource management  media-network resource
management
- Current situation: decoupled content/media management and network
management
- In future media-centric network environments, media/content should be
treated as one distinct dimension of resources, together with traditional
network resources such as bandwidth
•
Integration of network and media resource management
- Preliminary step: content-aware network management and networkaware content management as complementary functions
- Long term envisions: multi-dimensional resource management in future
media networks
- Adaptive/autonomic media-network management in dynamic
environments (e.g. change of network conditions and content delivery
requirements etc.)
EC Consultation Workshop on Networked Media Research, 19/01/10
Miscellaneous Issues and Requirements
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Security control in media creation and delivery
- Media handling based on the current host-to-host communication
model: content can be fetched only when its physical source is trusted
- In future media-centric network environments: users only care about the
content but not necessarily its actual source
- Security control becomes more challenging
•
Energy efficiency in handling rich networked media
- Energy awareness has already been investigated in Internet-based
communications and services
- Energy reduction in future media/content centric networks can be also
envisaged: much higher complexity/overhead in
processing/delivering/storing rich media/content in the Internet
- Possible solutions:
(1) design of green media-centric networking protocols
(2) energy-aware MNM paradigms
EC Consultation Workshop on Networked Media Research, 19/01/10