Erik Fledderus op de SURFnet Relatiedagen 2012

1. Wireless Campus of the Future
Prof. dr. Erik Fledderus
Managing director Information Society
Professor Wireless Communication, TU Eindhoven

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10-10-2012
Back to the Future - SURFnet relatiedagen
SURFnet and wireless?!
SURFnet is ahead of the market
– what is ‘being ahead in the
wireless market’?
Facilitator or Innovator? Or both?
Open or Closed ‘User’ Group?
Is ‘the campus’ the place to be to challenge current wireless
paradigms? And what is that challenge?

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Back to the Future - SURFnet relatiedagen
Wireless Local Loop – never successful in NL
Typically below 1 GHz, quite widespread in rural areas or low-quality
wired infrastructure
Reprise: WiMax in NL (‘wireless DSL’) – pushed out the market by
existing wired infra-providers
Wired infrastructure in
NL is HQ and very dense

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10-10-2012
Back to the Future - SURFnet relatiedagen
“It’s all about timing …”
Trend in wireless is to provide more bps/m3
more spectrum, more spectral efficiency (e.g. MIMO)
most important measure is ‘architectural’,
i.e. densification
Note: wired infra is quite static in terms of density …
Ray Kurzweil
Source: ZTE, 2012

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Back to the Future - SURFnet relatiedagen
… when is density comparable?
Traffic needs to be transported from access point to ‘internet’
Wired infra becomes enabler and root of successful roll-out of
next-generation wireless infra
What if trend continues?
From pointless attack (too early) to symbiosis (spot on) to …
Compare with wall sockets – clear development to ‘ambient’

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Back to the Future - SURFnet relatiedagen
Will it continue, and will it happen at the campus?
“The traffic demand is doubling every year (cf Cisco,
Huawei, DoCoMo) whilst available capacity is only
doubling every ten years. This gap between demand and
supply requires major technological advancement”
(Net!Works, 2011)
Source: Cisco, 2011

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Back to the Future - SURFnet relatiedagen
Is it just more bps/m3?
More densified architectures lead to new upcoming trends
Interference battle: decrease ‘interfered volume’, high freqs across
(unshielded / static) wired infrastructure
60 GHz / THz radio / POF is a partial way out
transmissions consume area: multi-hop minimizes interfered area
Source: PR Kumar, 2009

10. 10
10-10-2012
Back to the Future - SURFnet relatiedagen
Is it just more bps/m3?
Heterogeneous networking: wifi – 3G/4G/ …, offloading, HetNet
development in 3GPP, 802.11u (MAC enhancement focused on
network selection)
Challenges HetNet:
Inter-cell interference (open / closed user group)
Mobility management
What is the use of LTE femto cells
for SURFnet, in e.g. student
houses??
Het(erogeneous) Net(works) in 3GPP

11. 11
10-10-2012
Back to the Future - SURFnet relatiedagen
Is it just more bps/m3?
New spectrum policies / spectrum etiquette and enabling
technologies / cognitive radio:
From command/control to market-based to ‘commons approach’
Role of SURFnet as Innovator: raise the bar, create with
partners incl regulator a new Dutch landmark in wireless
history

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Back to the Future - SURFnet relatiedagen
Conclusions
Current cooperation between SURFnet and LTE providers focuses on
SURFnet as facilitator …
… providing integrated mobile / wireless access
… enlarging the reach and use of ‘eduroam’
Raise the bar! From the scenario analysis in TNO’s report:
“SURFnet is approached by the European Commission within the
PPP-FI program for ‘capacity building’, together with the other
NRENs. By showing a wider ambition (fixed/wireless), the
Commission will stimulate a strong role for SURFnet in the ‘smart
city’ projects.” – SURFnet as a real innovative mobile player
The Wireless Campus as platform for wireless network
innovation!