Page 279 - ITU-T Focus Group IMT-2020 Deliverables

ITU-T Focus Group IMT-2020 Deliverables 4

8.1 Background

The ever-increasing levels of wireless-communication traffic in recent years have consequently led to
increasing demand for more communication frequencies. Utilization of the millimeter wave (mmWave) band
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represents a key technology for the development of the heterogeneous networks (HetNets) that will be
th
used for 5 generation wireless cellular networks (5G). However, the application of mmWaves to mobile
communications is generally considered to be difficult because of the short communication range associated
with these waves as a result of the high attenuation of radio power in the mmWave band. For outdoor
applications of mmWaves in particular, one major difficulty is how to avoid the effects of rain, which can
dramatically reduce the transmitted radio-wave power. For mobile applications of mmWaves, the
significance of this problem is that network operators must strive to avoid the effects of low data throughput
in commercial mobile devices with maximum data rates of several hundred Mbps, which are much lower
than the multi-Gbps data rate of a typical mmWave-based wireless device, while also increasing frequency
usage efficiency using multilevel modulation in these wireless devices.

8.2 Technical Details
To resolve the above problems, Tokyo Tech, Sony, JRC and KDDI Labs jointly developed a new wireless access
network that combined 40 GHz operation for outdoor networks with 60 GHz operation for mobiles to enable
large data size content delivery on the gigabyte scale,

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Using a future architecture technology called content centric networking (CCN) , KDDI Labs developed a
method that operates together with the mmWave small zone (60 GHz band) and large zone long-term
evolution (LTE) schemes in HetNets (KDDI Labs 2015). We could therefore realize high-speed file transfer in
the mmWave band without the user being aware of switching of bands when passing through the GATE
system.

9 Bibliography

Ahlgren, B, C. Dannewitz, Imbrenda, C., and et al. “A survey of information-centric networking.” IEEE
Communications Magazine 50, no. 7 (July 2012): 22-36.
Augé, J., G. Carofiglio, G. Grassi, L. Muscariello, G. Pau, and X. Zeng. “Anchor-less Producer Mobility in ICN.”
ACM ICN. San Francisco, USA, 2015.
Azgin, Aytac, Ravi Ravindran, and G.Q. Wang. “Scalable Mobility-Centric Architecture for Named data
Networking.” SCENE Workshop, IEEE ICCCN. 2014.
—. “Seamless Mobility as a Service in Information Centric Networks.” 5G/ICN Workshop, ACM ICN. 2016.

Bahrami, M., L. Xie, L. Liu, and et al. “Secure function chaining enabled by information-centric networking.”
IEEE ICNC. Silicon Valley, USA, 2017.

Carofiglio, G., L. Muscariello, M. Papalini, N. Rozhnova, and X. Zeng. “Leveraging ICN In-network Control for
Loss Detection and Recovery in Wireless Mobile Networks.” ACM ICN. Kyoto, Japan, 2016.
Carofiglio, G., M. Gallo, L. Muscariello, M. Papalini, and S. Wang. “Optimal multipath congestion control and
request forwarding in Information-Centric Networks.” IEEE ICNP. Gottingen, Germany, 2013.
Chakraborti, Asit, and et al. “ICN based Scalable Audio-Video Conferencing on Virtualized Service Edge
Router (VSER) Platform.” ACM ICN. 2015.

5 A HetNet is a network that is used to connect computers and other devices with different operating systems and/or
protocols. An example of the application of millimeter wave technology to small-cell networks can be found in:
http://search.ieice.org/bin/pdf_link.php?category=B&lang=E&year=2015&fname=e98-b_3_388&abst=
6 CCN is a future protocol that is currently being discussed by the Internet Research Task Force (IRTF) as a replacement
for the Internet Protocol (IP).

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