Page 271 - ITU-T Focus Group IMT-2020 Deliverables

ITU-T Focus Group IMT-2020 Deliverables 4

3) Gap E.9 ICN UE provisioning

In IMT-2020 networks a user is expected to utilize heterogeneous access technologies, such as WIFI
and LTE, at the same time. ICN gives us the opportunity to do this in a natural way. A user can request
different pieces of content over different medium, since there is no direct connection between the
user and the producer on a particular path. In the PoC we show how we can exploit different access
technologies and switch among them, according to the client preferences. The usage of multiple
connections increases the bandwidth available at the client and improves the user video experience:
the DASH client asks for videos with higher quality, reducing, at the same time, the number of
rebuffering events.

4) Gap E.6 ICN Protocol Execution
In the demo we deploy a virtualized network backhaul, as well as multiple clients that run a DASH
video player application. We use an orchestrator to deploy and modify over the time the topology
setting.

5 Functional Chaining System in ICN (Fujitsu Labs of America)
This POC demonstrates features and capabilities of ICN to dynamically construct functional chains that deliver
on numerous IMT-2020 goals. Specifically, the functional and performance advantages are highlighted and
standardization gaps are identified. The POC includes a live demonstration, technical details of which are
described in Annex B.2.

5.1 Abstract
Information-Centric Networking (ICN) is an emerging Internet architecture in which content is accessed by
its name rather than the IP address of the host that stores the content. By separating content from location,
ICN is expected to improve network efficiency and reduce the communication cost of accessing popular
content. While there are several representative ICN designs (Ahlgren, et al. 2012) (Xylomenos, et al. 2014),
this demonstration makes use of the Named Data Networking (NDN) (Named Data Networking 2016)
architecture (but its concepts can be applied equally to other ICN architectures).

ICN principles can be applied to functions as well as to content. Named functions can then be linked to form
service chains that provide optimized service delivery. This demonstration illustrates such a functional
chaining system to deliver real-time processed video content to a consumer.

There are multiple video sources (1, 2, 3) and multiple video processing functions (video combiner, video
compression) linked by NDN routers (A, B, C, D) as shown in Figure 12.

Figure 12 – Functional Chaining System demo setup

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