1. NEXT GENERATION WIRELESS TECHNOLOGY
Gi-Fi
NEXT GENERATION WIRELESS TECHNOLOGY

2. INTRODUCTION To Gi-Fi:
For many years cables ruled the world, optical fibres played a dominant role for its faster transmission but installation of cable caused a greater difficulty and lead to wireless access.
Foremost of this is bluetooth then Wi-Fi followed it. But the mans continuous quest for even better technology led to the introduction of new ,more up-to-date standard for data exchange rate i.e. Gi-Fi.
Wi-Fi(ieee b) and WiMax(ieee e) have captured our attention.
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. Wimax Wireless Access OpticalFiber In june 2001 Invented in 1991
Bluetooth
Wi-Fi
In 1980s
Wireless Access
19th centuary
First developed in1970s
Cables
OpticalFiber

4. Why Gi-Fi ? slow rate, high power consumption,
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.

5. Comparison of Bluetooth and Wi-Fi with Gi-Fi
characteristics
Bluetooth
Wi-Fi
Gi-Fi
Frequency
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
Notebooks,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 b,WBCA
IEEE C

6. Disadvantages of Bluetooth & Wi-Fi
The bit rates of Bluetooth is Kbps 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

7. 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.
Gi-Fi will allow wireless transfer of audio and video data up to 5 gigabits per second.
Gi-Fi is ten times the current maximum wireless transfer rate usually within a range of 10 meters.

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

9. Architecture of Gi-Fi :
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 C
The wireless span is computer network used for communication among computer devices (including telephones and personal digital assistants) close to one person
An c based system often uses small antenna at the subscriber station. The antenna is mounted on the roof. It supports line of sight operation.

10. FUNDAMENTAL TECHNOLOGIES IN 802.15.3C :
It transmits multiple signals simultaneously across the wireless transmission paths within separate frequencies to avoid interference.
It uses ultra wide band.
Which consists of :
High bit rate
High security
Faster data transmission

11. Working of Gi-Fi
Use of Time Division Duplex for both transmission and receiving.
Conversion of data from IF range to RF60Ghz range
The incoming RF signal is first 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.
And then data is transferred.

12. FEATURES OF GI-FI : High speed of data transfer Low power consumption
High security
Cost effective
Small size
Quick deployment
Highly portable,highmobility

14. Gi-Fi Access Devices:

15. APPLICATIONS OF GI-FI House hold appliances :
-it makes the wireless home
of the future:
2. Office appliances :
3. Video information transfer:

16. 4. Inter-vehicle communication system:
5. Broadcasting video signal transmission system in sports stadium:

17. TECHNOLOGY CONSIDERATIONS :
The Gi-Fi integrated transceiver chip is may be launched by starting of next year by NICTA,Australia will be first .
Due to less cost of chip so many companies are forward to launch with lower cost.
The potential of mw-WPAN for ultra fast data exchange has prompted companies like Intel, LG, Matsushita (Panasonic), NEC, Samsung, SiBEAM, Sony and Toshiba to form WirelessHD, an industry-led effort to define a specification for the next generation consumer electronics products.

18. Next To Gi-Fi
Specifically, WirelessHD has a stated goal of enabling wireless connectivity for streaming high- definition content between source devices and high-definition displays.

19. CONCLUSION :
Within five years, we expect Gi-Fi to be the dominant technology for wireless networking.
which will develop wire less 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 an entirely new way.

20. THANK YOU ALL