EC Consultation Workshop on Networked Media Research, 19/01/10

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 ChallengesMajor 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

OverviewOverview

New paradigms for media provisioning and handling

Media-centric networking platforms

Integrated media-network management (MNM)

New business modelsfor a media-centric Internet

Requirements and issues(Security, QoS, energy-efficiency, …)

EC Consultation Workshop on Networked Media Research, 19/01/10

Business Model InnovationBusiness 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 PlatformsMedia-centric Network Platforms• 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 ManagementIntegrated Media-Network Management• 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 network-aware 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 RequirementsMiscellaneous Issues and Requirements• 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