Gi-Fi is a new wireless technology that operates at 60GHz and allows data transfer rates up to 5 gigabits per second, ten times faster than current Wi-Fi speeds. It uses millimeter wave antennas at an unlicensed 60GHz frequency band to achieve high speeds with low power consumption. Gi-Fi has applications for wireless home networks and inter-vehicle communication, transferring large files like video within seconds. The technology is expected to become dominant for wireless networking in the next few years by providing low-cost, high-speed broadband access without cables.

1. GI-FI
TECHNOLOGY
PRESENTED BY:
A.KALYANA RAM

2. INTRODUCTION
• Wi-Fi (ieee-802.11b) and Wi-Max (ieee-
802.16e) are the recent developments for
data transfer.
• Problem with faster rate of transfer data as
video information transfer is taking lot of
time.
• This lead to introduction of Gi-Fi technology,
with far more advantages over Wi-Fi.

3. WHY GI-FI ??
Reasons for pushing into Gi-Fi technology is
because of
• Slow rate of data transfer.
• High power consumption.
• Low range of frequency operations of earlier
technologies i.e., Bluetooth and Wi-Fi.

4. BLUETOOTH VS WI-FI VS GI-FI

5. WHAT IS GI-FI ??
• Gi-Fi or gigabit wireless
is the world’s first
transceiver integrated on a
single chip that operates at
60GHz on the CMOS
process.
• It allows wireless transfer
of audio and video data at
up to 5 gigabits per
second, ten times the
current maximum wireless
transfer rate, at one-tenth
the cost.

6. WORKING
• Time division duplex is used for both transmission and receiving.
At Transmitter :
• Data files are up converted from IF range to RF 60GHz range by
using 2 mixers.
• The output will be fed into a power amplifier, which feeds
millimeter wave antenna.
At Receiver :
• The incoming RF signal is first down converted to an IF signal
centered at 5 GHz and then to normal data ranges.
• We use heterodyne construction for this process to avoid
leakages due to direct conversion.
• Due to availability of 7 GHz spectrum, the total data will be will be
transferred within seconds.

7. WHY 60GHZ ….??
• Millimeter wave antenna used will operate at 60GHz
frequency which is unlicensed band. Because of this
band, we are achieving high data rates.
• Energy propagation in the 60 GHz band has unique
characteristics that makes possible many other benefits
such as excellent immunity to co-channel interference,
high security and frequency re-use.
• Point-to-point wireless systems operating at 60 GHz
have been used for many years for satellite-to-satellite
communications. This is because of high oxygen
absorption at 60 GHz (10-15 dB/Km).

8. CONTINUED….
• Gaseous absorption attenuates 60 GHz signals
over distance, so that signals cannot travel far
beyond their intended recipient.
• For this reason, 60GHz is an excellent choice for
covert communications.

9. FEATURES
• High speed of data transfer
• Low Power Consumption
• Quick Deployment
• Small Size
• Cost-effective
• High Security
• High Performance
• Highly Portable
• Flexible Architecture

10. APPLICATIONS
• GI-FI Access Devices

11. • INTER-VEHICLE COMMUNICATION SYSTEM
• Video information transfer

12. FUTURE OF GI-FI
• A completely integrated single chip transceiver has
been fabricated, tested and demonstrated in Gi-Fi
chip and a transceiver with integrated phased array
antenna on 65nm CMOS technology has been sent
for fabrication
• Within next few years, we expect Gi-Fi to be the
dominant technology for wireless networking. By
providing low-cost, high broadband access, with
very high speed large files swapped within seconds
it could develop wireless home and office of future

13. CONCLUSION
• This technology removes cables that for many
years curled the world and provides high speed
data transfer rate.
• By the time it’s fully mobile, as well as providing
low-cost, high broadband access with very high
speed, Large files can be swapped within seconds
which will develop wireless home and office of
future.
• If the success of Wi-Fi and the imminent wide
usage of WiMax is any indication, Gi-Fi potentially
can bring wireless broadband to the enterprise in a
new way.

14. THANK YOU…. !!!
ANY
QUERIES???