Golnaz Farhadi Cloud-Based Solutions Innovation Group Fujitsu Laboratories of America, Inc. January 2014 Next Generation Wireless Networks
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Golnaz Farhadi
Cloud-Based Solutions Innovation Group
Fujitsu Laboratories of America, Inc.
January 2014
Next Generation Wireless Networks
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Source: Ericsson (Nov. 2013) 9.2 Billion
Mobile subscriptions by 2019
4X
Growth in mobile broadband
subscriptions between 2013-2019
Wireless Networked Society
The world is becoming increasingly mobile… (wireless connectivity anywhere, anytime, anything)
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Source: Ericsson (Nov. 2013)
… and mobile data traffic growth
Mobile Data Traffic
increasing exponentially
Source: Ericsson (Nov. 2013)
Source: Ericsson (Nov. 2013)
Tra
ffic
fro
m c
onnecte
d t
hin
gs
Source:
http://shahneil.com/wp-content/uploads/2010/07/M2M-Applications.png
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How to meet the demand?
Small cell deployment
Offload over WiFi networks
Continued link enhancements
Offload traffic: 46%
Cellular traffic:
54%
Source: Fujitsu
Source: Fujitsu
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More spectrum!!
Much of spectrum is allocated
But underutilized!
• Spectrum refarming is costly
Spectrum sharing paradigm
Spectrum scarcity is an artifact of
fixed spectrum assignment policy
Location
List of channels
TVWS database
No interference with incumbents, via
Channel query from a certified database
Technology innovations are
necessary but not sufficient
Unused spectra (white spaces) in the TV band
(TVWS)
Secondary
(unlicensed access)
Incumbents
(Primary) Sharing
model in
TVWS
Source: http://www.ntia.doc.gov/files/ntia/publications/2003-allochrt.pdf
More spectrum is vital for
growing broadband demand
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… is it the whole solution?
Dense small cells/WiFi deployment Heterogeneous coexistence in
shared spectra
Database as the coexistence management (CxM) service provider
Increases spectrum utilization
Improves user experience
LTE
WiFi
CxM Agent
Data
Fujitsu CxM Controller
(in the database)
Collect Information from all networks
Detremine network parameters
(bandwidth, spectrum , …)
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2
3
4
5
6
CxM Agent
Data
CxM Agent
Data
CxM Agent
Data
CxM Agent
Data CxM Agent
Data 6
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Next Generation Wireless Access
Source: Qualcomm
Hierarchal and
heterogeneous
(3G/4G/5G+WiFi)
Support wide
range of
frequencies
Software-defined
Wireless
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