A brilliant use of under-utilized frequencies to provide last-mile internet services in developing nations not only helps in upliftment of the society both socially and academically but also connects people of the world.

1. Consulting | Strategy | Digital | Technology | Operations
White Space Technology
- Akshank Shah
(TIBCO Developer)
H3G-EAI, Mumbai

2. Content
Potential in rural & remote areas
LIVE Application
Current Scope
Last Mile Wireless Broadband Access
- Challenges
- Solutions
Introduction to White Space Technology
- IEEE802.11af & IEEE802.22 WRAN Standards
- Working Principle
- Benefit over WiMAX
- Incentive (Unused broadcasting freq.) auctions

4. ws

5. INTRODUCTION
Refers to the unused broadcasting frequencies in the wireless spectrum
Uses ‘white space’ or the unused spectrum reserved for broadcasting TV
channels, to provide wireless broadband Internet access to a vast population
White Space broadband can travel up to 10 kilometres, through vegetation,
buildings, and other obstacles.
Can access power through portable power stations
Delivers broadband data to underserved rural communities or off-the-grid
villages
Spectrum ranges from 470 MHz to 790 MHz
Unlike Wi-Fi, which has a range of only about 100 metres, the 200-300 MHz
spectrum in the white space can reach up to 10 km.

6. • Also known as White-Fi or Super Wi-Fi
• Allows wireless local area network (WLAN) operation in TV white space
spectrum in the VHF and UHF bands between 54 and 790 MHz
• Cognitive radio technology is used to transmit on unused TV channels
• Operates in UHF and VHF bands. Thus, propagation path loss as well as the
attenuation by materials such as brick and concrete is lower.
• Achievable data rate = 26.7 Mbit/s ~ 568.9 Mbit/s
• Designed for ranges up to 1 km
• Specifies operation in a point to multipoint basis (P2MP)
• Defines a X.509v3 certificate profile which uses extensions for
authenticating and authorization of devices based on information such as
device manufacturer, MAC address, and FCC ID
• Designed for ranges up to 100 km

7. Benefit over WiMAX & Wi-Fi
• In a typical home, a Wi-Fi
signal can penetrate up to
two walls. At the same time,
a TV white space signal can
penetrate through more walls
& obstacles, enabling whole
home media distribution.
• This will simplify and enrich
in-home/in-building network
opportunities.

8. Work Principle
1. Devices only use the TV white
spaces channels specified by the
database.
2. Devices are required to re-check
the database for the list of
available channels.
3. Databases are prohibited from
providing access to the channels
occupied by the incumbent
operators (e.g. broadcasters).
4. Databases are required to
maintain up-to-date lists of
protected operators.
5. Databases can block newly
occupied channels to prevent
further white spaces access.

9. Incentive
auctions*
The FCC introduced incentive auctions in the
2010 National Broadband Plan.
The auctions are a voluntary, market-based
way that encourages licensees to relinquish
spectrum rights in exchange for a share of
proceeds from the auction of new licenses.
Incentive auctions could
potentially allow private
companies like ComCast and
time Warner to purchase
unlicensed broadband spectrum
and use it for themselves.

10. • Providing a source of
Internet connectivity as
part of a business
continuity plan.
• Provide portable mobile broadband
connectivity across cities and countries
through a variety of devices.
• Provide a wireless alternative to cable
and digital subscriber line (DSL) for
‘last mile’ broadband access.
• Provide data, telecommunications
(VoIP) and IPTV services besides
regular smart grid services.
• Smart grids and metering
Potential in rural & remote areas

11. Check the URL: https://spectrum.iconectiv.com/h32/home/contour_vis.shtml
LIVE Implementation

12. Available white space for Broadband Tx
Active TV Broadcast

13. “Microsoft plans to provide free Internet across India
using ‘white space’ TV spectrum”
- Tech2 Magazine
“Microsoft plans to provide free Internet across India
using ‘white space’ TV spectrum”
- Tech2 Magazine
Microsoft has implemented White Space projects
throughout Asia, including a recent deployment in
Singapore through partnerships with Singapore
government research agencies and in Europe via
UK wireless service provider in areas where
vegetation makes wireless access difficult.
Microsoft has implemented White Space projects
throughout Asia, including a recent deployment in
Singapore through partnerships with Singapore
government research agencies and in Europe via
UK wireless service provider in areas where
vegetation makes wireless access difficult.
CURRENT SCOPE
Microsoft is also creating a database for White
Space in the U.S., much like Google's.
Microsoft is also creating a database for White
Space in the U.S., much like Google's.

14. Thank You