An Overview of Cloud Based Content Delivery Networks: Research Dimensions and State-of-the-Art - Transactions on Large-Scale-Data-and Knowledge-Centered Systems XX - page 151

synchronisation tools, activity monitoring and visualisation tools. A Codeen user sets
their cache to a nearby high bandwidth plant lab node location. Request to the codeen
node at the location is directed to the most appropriate member of the planet lab system
that has a cached copy of the

le is forwarded to the client. However, this
system lacks support for dynamic content distribution.

le. This

5.7 Comodin

COMODIN (COoperative Media On-Demand on the InterNet) is an academic CDN
providing streaming media service on current Internet infrastructure [ 41 ]. COMODIN
enables a collaborative experience while streaming media content via the Internet.
For examples, a group of users can coordinate the state of a media

le (e.g. play, pause
etc.). COMODIN follows a two layer architecture comprising of a base plane and a
distributed set of playback components. The system employs IP-multicast to stream
data across multiple clients. This academic CDN focuses more on content control
collaboratively rather than content creation or distribution.

5.8 CoDaaS: An Experimental Cloud-Centric Content Delivery
Platform for User-Generated Contents

CoDaaS [ 42 ] is a cloud-centric content delivery system focused on distributing user-
generated content in the most economical fashion while respecting the Quality-of-
Service (QoS) requirements. It enables on-demand virtual content delivery to a targeted
set of users. The system is built of hybrid cloud environments. Figure 9 presents an
architecture overview of the CoDaaS system.

Fig. 9. CoDaaS system architecture