Page 248 - Big data - Concept and application for telecommunications

5 Big data - Concept and application for telecommunications

5) during data transmission from the fixed to the mobile network between cache nodes, the network
plane controls the transmission speed and route, while the management plane also implements the
charge policy according to the data transmitted.

Figure 6-11 – Content transmission control to the content delivery network
end user in big-data-driven networking

In this case, there are two scenarios: content transcode according to the user terminal and content
transmission control between cache nodes.
1) Content transcode according to the user terminal in cache node of CDN in bDDN.
A mobile user requests a video stream from the data source. The big-data plane network sensing layer of
collects radio information (e.g., cell load, link quality). To reduce time-to-start and 'best' video quality, the
big data repository needs to transcode the video according to the client radio network link status (i.e., to
transcode the video into a lower bit rate stream).
Also, for different types of cell phone, various types of encoding content are needed. Figure 6-12 illustrates
content transcode according to the user terminal in the cache node of CDN in bDDN.

Figure 6-12 – Content transcode according to the user terminal in the content delivery network
cache node in big-data-driven networking

240 Network and infrastructure