It's all about the Gi-fi Technology

1. GI-FI TECHNOLOGY
PRESENTYED BY
R.SOWNDARYA
17304024
1

2.  INTRODUCTION
 WHAT IS GI-FI?
 WHY GI-FI?
 ARCHITECTURE OF GI-FI
 GI-FI CHARACTERISTICS
 WORKING OF GI-FI
 WHY 60GHz?
 COMPARISION
 GI-FI ACCESS DEVICES
 GI-FI FEATURES
 BENEFITS
 APPLICATION
 CONCLUSION
 REFERENCES
CONTENTS 2

3. INTRODUCTION
 As there is no recent developments which transfer data at faster rate, as Video
information transfer taking lot of time.
 This leads to introduction of Gi-Fi technology it offers some advantages over
Wi-Fi, a similar wireless technology.
 It was developed at the National Information And Communication Technology
Research Center in MELBOURNE, AUSTRALIA.
3

4. WHAT IS GI-FI?
 Gi-Fi stands for Gigabit Wireless.
 It is the world’s first transceiver integrated on a single chip that operates at 60GHz
on the CMOS process.
 It is ten times faster than other technology and its chip delivers short-range
multigigabit data transfer in a local environment.
 It provides high speed short range data transfers with speeds of up to 5 Gbps
within a range of 10 meters.
4

5. DISADVANTAGES OF BLUETOOTH & WI-FI
The bit rates of Bluetooth is
800Kbps and Wi-Fi has 11Mbps
Both are having power
consumptions 5mw and 10mw
 The lower frequency of
operation 2.4GHz.For transferring
large amount of videos, audios,
data files take hours of time.
So, to have higher data
transfer rate at lower power
consumption we move onto
Gi-Fi technology
6

6. The reason for pushing into GI-FI technology is because of
 Slow rate
 High power consumption
 Low range of frequency operations of earlier technologies i.e.,
Bluetooth and WI-FI.
WHY GI-FI? 7

7. ARCHITECTURE OF GI-FI
 Gi-fi chip has flexible architecture.
 It is highly portable and can be constructed in everywhere.
 Entire transmission system can be built on a cost effective single silicon chip that
operates in the unlicensed, 57-64 GHz spectrum band.
 The core components of a GI-FI system is the subscriber station which available
to several access points .
 It is based on standards of IEEE 802.15.3C .
 The wireless span is computer network used for communication among computer
devices (including telephones and personal digital assistants) close to one
person .
 An 802.15.3c based system often uses small antenna at the subscriber station. The
antenna is mounted on the roof. It supports line of sight operation.
7

8. 9
Gigabit wireless: The Gi- Fi integrated wireless transceiver chip,
developed at the National ICT Research Centre, Australia.

9. GI-FI CHARACTERISTICS
 Ease of deployment
 Small form factor
 Information management
 High speed of data transfer
 Low power consumption
9

10. WORKING OF GI-FI
 Use of Time Division Duplex for both transmission and receiving.
 Conversion of data from IF range to RF60Ghz range.
 Data files are up-converted from IF range to RF range centered at 60GHz by using
mixers. Then it is fed into power amplifier which feeds millimeter wave antenna.
 The incoming RF signal is down converted to an IF signal centered at 5 GHz and then to
normal data ranges.
 Then use heterodyne principle for this process to avoid leakages.
 Due to availability of 7GHz spectrum the total data will be transferred within seconds.
10

11. WHY 60GHz?
 Immunity to co-channel interference.
 High security.
 Frequency reuse.
11

12. Cables OpticalFiber
Wireless Access
Bluetooth Wi-Fi
Wimax
19th
centuary
13

13. COMPARISON OF BLUETOOTH AND WI-FI WITH GI-FI
characteristics Bluetooth Wi-Fi Gi-Fi
Frequency 24GHz 24GHz 60GHz
Range 10 meter 100meters 10meters
Primary application WPAN cable replacement WLAN Ethernet Embedded in devices
Data transfer rate 800 Kbps 11Mbps 5Gigabps
Power consumption 5mw 10mw 2mw
Primary devices Mobile phones,PDAs,consumer electronics,office and
industrial devices
Note books, desktop
computer
Fax, Printer, Cellular
phones
Primary uses Travelling employees,electronics consumers,office ad
industrial workers
corporate users Wireless Home &
office appliances ,etc.
Usage location Anywhere atleast two bluetooth device exist-ideal for
roaming outside buildings
Within range of
WLAN
infrastructure,usually
inside a buildings
WPAN Networks
Specification Bluetooth S&G IEEE 802.11b,WBCA IEEE 802.15.3C
13

14. GI-FI ACCESS DEVICES 14

15. GI-FI FEATURES
 Capacity of High Speed Data Transfer
 Interference in Data Transfer
 Power consumption
 Provides high security
15

16. CAPACITY OF HIGH SPEED DATA
TRANSFER
 The data transfer rate of Gigabit wireless technology is in Gigabits per
second.
 Speed is 5 Gbps, which is 10 times the data transfer of the existing
technologies.
 Providing higher data transfer rate is the main invention of Gi-Fi.
 An entire High-Definition (HD) movie could be transmitted to a mobile phone
in a few seconds, and the phone could then upload the movie to a home
computer or screen at the same speed.
16

17. INTERFERENCE IN DATA
TRANSFER
 It uses the 60GHz millimeter wave spectrum to transmit the data, which
gives it an advantage over Wi-Fi.
 Wi-Fi’s part of the spectrum is increasingly crowded, sharing the waves
with devices such as cordless phones, which leads to interference and
slower speeds.
 But the millimeter wave spectrum (30 to 300 GHz) is almost unoccupied,
and the chip is potentially hundreds of times faster than the average home
Wi-Fi technology.
17

18. POWER CONSUMPTION
 Power consumption of the present technologies such as Wi- Fi and Bluetooth
are 5mili watts and 10mili watts but chip of Gi-Fi uses a tiny one-millimeter-wide
antenna and it has less than 2mili watts of power consumption that in compare
to the current technologies is very less.
18

19. PROVIDES HIGH SECURITY
 Gi-Fi technology is based on IEEE 802.15.3C and this standard provides
more security since it provides optional security in the link level and
service level.
 Point-to-point wireless systems operating at 60 GHz have been used for
many years by the intelligence community for high security
communications and by the military for satellite to satellite
communications.
19

20. BENEFITS OF GI-FI TECHNOLOGY
The most important benefits of the Gi-Fi technology are as
follows:
Removing cables
Cost of Chip is low
Privacy and Security
Flexibility
20

21. REMOVING CABLES
 The limitations for data exchange rate and range and high cost of the
infrastructures made it impossible for Wi-Fi to become a good replace for the
cables.
 Gi-Fi technology removes need for cables to connect consumer electronics
devices and all the devices can be connected in order to transmit the data
wirelessly.
21

22. COST OF CHIP IS LOW
 Gi-Fi’s chip uses only a tiny one-millimeter-wide antenna and less than 2mili
watts of power.
 Low-cost chip allows technology to be readily incorporated into multiple
devices. The chip in Gi-fi would likely cost less to build .
 A small design would allow cell phones and other small devices to add the
technology without significantly drive up the price.
22

23. PRIVACY AND SECURITY
 Encryption technology in Gi-Fi ensures privacy and security of content. About
70 per cent of firms have deployed their WLAN in a secure firewall zone but
are still using the old WEP protocol, which does not protect the application
layer effectively, so better encryption is urgently needed.
23

24. FLEXIBILITY
 One of the problems with wire connections and cables is complexity for
connecting, but in the GI-FI technology simplicity is one of the features.
 Simple connection improves the consumer experience. The benefits
related to the Gi-fi technology that can be achieved by the deployment and
use of this technology.
24

25. 1. House hold appliances –
it makes the wireless home of the future
2. Office appliances
3. Video information transfer
4. Broadcasting video signal transmission system in
sports stadium
APPLICATIONS
27

26. CONCLUSION
 Within five years, we expect Gi-Fi to be the dominant technology for wireless
networking.
 By that time it will be fully mobile, as well as providing low-cost, high broadband
access, with very high speed large files swapped within seconds which will
develop wireless home and office of future.
26

27. REFERENCE
 [4]. Sachin Abhyankar, 2009,” Gi-Fi: Emerging Technologies”, IEEE Trans.
Commun., vol. 14, no. 34, pp. 87-95.
 [2] Marzieh yazdanipour, Mina Yazdanipour, Afsaneh Yazdanipour, Amin
Mehdipour,” Evaluation of Gi-Fi Technology for Short-Range, High-Rate
Wireless Communication” UACEE International Journal of Advances in
Computer Networks and its Security- Volume 2 : Issue 3 [ISSN 2250 -
3757].
 [3] GI-FI technology “Wikipedia”
 [4] J.Santhan Kumar Reddy “GI-FI TECHNOLOGY ” Gokula Krishna
College of Enginnering.
 [5] Report on “GI-FI Technology”.
27

28. THANK YOU
28