This document discusses gigabit wireless (Gi-Fi) technology, a next generation wireless technology developed at the National ICT Research Centre in Australia. Gi-Fi uses a single-chip transceiver operating at 57-64 GHz to provide wireless transfer of audio and video data at speeds up to 5 Gbps over short ranges of 10 meters with low power consumption of under 2 mW. The technology offers higher data rates and lower power usage than existing wireless technologies like Bluetooth and Wi-Fi. Gi-Fi has applications for wireless transfer between devices in homes and offices and is expected to become the dominant wireless networking technology within five years.

1. GIGABIT WIRELESS TECHNOLOGY
NEXT GENERATION WIRELESS TECHNOLOGY
Guided By
Lizy Abraham
Assistant Professor
LBSITW
Presented By
Nimisha C.R.
Roll No: 41
LBSITW

2. INTRODUCTION TO GI-FI
 Gigabit Fidelity or Gigabit Wireless
 World's first transceiver integrated on a single chip
 Fabricated using CMOS (Complementary Metal Oxide Semiconductor)
process
 Wireless transfer of audio and video data within seconds
 Developed at the National Information And Communication Technology
Research Center in MELBOURNE, AUSTRALIA
2

3. Professor Stan Skafidis
The Man Behind Gi-Fi
3

4. The common Wireless technologies currently used are:
Bluetooth
Wi-Fi
Why……..?
4

5. SPECIFICATION BLUETOOTH WI-FI GI-FI
Frequency 2.4 GHz 2.4 GHz 57 – 64 GHz
Range 10 m 100 m 10 m
Data transfer rate 800 kbps 11 Mbps 5 Gbps
Power consumption 5 mW 10 mW < 2 mW
Primary Devices Mobiles phones,
consumer
Electronics etc.,
Notebook computers,
Desktop Computers,
Servers
Both areas
Primary Application WPAN: cable
replacement
WLAN: Ethernet
replacement
Both
Usage location Anywhere atleast two
bluetooth device exist
Within range of
WLAN
infrastructure,usually
inside a buildings
WPAN Networks
Development Start Date 1998 1990 2004
Under development
Comparison between Bluetooth, Wi-Fi and Gi-Fi
5

6. fig : frequency versus peak data rate
6

7. Need for :
• Higher data transfer rate
• Lower power consumption
The disadvantages of existing technologies :
 Slow rate ( < 11 Mbps)
 High power consumption ( > 5 mW)
 Low range frequency of operation (2.4 GHz)
7

8. WHAT………?
 Wireless Technology
 5 gigabits per second
 Range of 10m
 Operates in 57-64 GHz
 2 watt power consumption
8

9. HOW……….?
 Core component – Subscriber Station
 Duplex antenna at roof of each access point
 Supports Line of Sight operation
 Supports IEEE 802.15.3c
 Supports Millimeter Wave Wireless Network
Transmits multiple signals across transmission path with separate
frequencies.
9

10. Gigabit wireless: The Gi-Fi integrated wireless
transceiver chip, developed at the National
ICT Research Centre, Australia.
10

11. • Multiple Input Multiple Output (MIMO)
-Emerging Cost Effective Technology
-Technical Breakthrough
• Performance Improvements
-Array gain
-Diversity gain
-Spatial Multiplexing Gain
-Interference Reduction
Technologies Used…
11

12. • System On A Package
-More Feasible Approach
-Overall Enhancement Of Functionalities
-Overcomes Disadvantages Of MCM’s
• Implementation Of Complex Functionality
• Point-to-point Communication At 60GHz
• Millimeter Wave Antenna At 60GHz
Technologies Used…
12

13. WORKING PRINCIPLE…
• Time division duplex for both transmission and receiving
• Transmission :
› data files from IF range to RF60Ghz range
› Conversion using 2 mixers
› Fed to a power amplifier
› Fed to millimeter wave antenna.
Data files
Radio Frequency
(60 GHz)
Local
Oscillator 1
Infrared
Frequency
Mixer 1 Mixer 2 Power
Amplifier
Wave
Antenna
Local
Oscillator 2
13

14. • Reception:
›RF signal down converted to an IF signal centered at 5 GHz
›Converted to normal data ranges using heterodyne principle to avoid
leakages
• Availability of 7 GHz spectrum
• Transfer within seconds
Local Oscillator 1 Local Oscillator 2
Mixer 1 Mixer 2
60 GHz 5 GHz
5 GHz
WORKING PRINCIPLE…
14

15. 15

16. FREQUENCY OF OPERATION…
• Point-to-point Communication At 60GHz
• Millimeter Wave Antenna At 60GHz
• High Oxygen Absorption At 60GHz
• High Data Rate Energy Propagation
• Co-channel Interference , High Security , Frequency re-use
• Time Division Duplex
16

17. fig : frequency versus distance
fig : Energy absorption by O2 at 60 GHz
17

18. FEATURES OF GI-FI
High speed of data transfer
High level of frequency re-use enabled
Deploys line of sight operation
 Operates over a range of 10 meters without interference.
More flexible architecture.
Low power consumption
18

19. High security
Cost effective
Small size
Quick deployment
Highly portable, high mobility
wireless streaming of uncompressed high-definition content
FEATURES OF GI-FI
19

20. APPLICATIONS OF GI-FI
1. House hold appliances :- it
makes the wireless home of the
future
20

21. 2. Office appliances :
3. Video information transfer:
21

22. Gi-fi Access Devices
22

23. 4. Inter-vehicle communication
system:
23

24. 5. Broadcasting video signal transmission system in sports stadium:
24

25. FUTURE SCOPE…
• Easily Embedded Into Devices
• Wireless Office and Home Equipment
• Great Reliability And Ability
• Greater Potential
• Wireless HD
25

26. CONCLUSION
 Within five years, we expect Gi-Fi to be the dominant
technology for wireless networking.
 Gi-Fi can bring wireless broadband to the enterprise in
an entirely new way.
26

27. [1] Innovative With GI-FI Technology P.Srikanth, J.R.Thresphine, M.Tech Student
Department of CSE, PRIST University Pondicherry, India Assistant Professor
Department of CSE, PRIST University Pondicherry, India. Vol. 2 IJARCST Issue 1
Jan-March 2014
[2]Gast, Matthew, ―802.11 Wireless Networks: The Definitive Guide, Second
Edition, Sebastopol, CA: O’Reilly & Associates, Inc., 2005.
[3] Ross, John, ―The Book of Wireless: A Painless Guide to Wi-Fi and
Broadband Wireless, Second Edition, San Francisco, CA: No Starch Press, 2008.
[4] Sachin Abhyankar, Rishi Toshiwal, Carlos Cordeiro and Dharma Agraqal,
―Emerging Technologies: WLANS and WPANS: On the Application of Traffic
Engineering over Ad Hoc Networks‖, Unpublished, 2003
[5] Electronista Staff, ―NICTA GiFi Chipset,[Online],Available at:
http://www.electronista.com/articles/08/02/22/nicta.gifi. chipset/, February 2008.
References
27

28. 28