2. Contents :
Introduction to Gi-Fi
Network Evolution
Why Gi-Fi
Comparision of bluetooth and Wi-Fi with Gi-Fi
Disadvantage of bluetooth and Wi-Fi
Architecture of Gi-Fi
Working of Gi-Fi
3. Features of Gi-Fi
Applications of Gi-Fi
Technology Consideration
Conclusion
References
4. Introduction to 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 allows 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.
5. The GiFi operates on the 60GHz frequency band.
The GiFi measures 5mm square and it is
manufactured using existing complementary metal
– oxide-semiconductor(CMOS) technology.
It was developed at the National Information And
Communication Technology Research Center in
MELBOURNE,AUSTRALIA.
7. 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 ?
9. 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
Notebooks,deskto
p 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,usu
ally inside a
buildings
WPAN
Networks
Specification Bluetooth S&G IEEE 802.11b,WBCA IEEE 802.15.3C
10. 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
11. Architecture of Gi-Fi :
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.
12. Working of Gi-Fi
Use of Time Division Duplex for both
transmission and receiving.
Conversion of data from IF range to RF 60Ghz
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.
13. FEATURES OF GI-FI :
High speed of data transfer
Low power consumption
High security
Cost effective
Small size
Quick deployment
Highly portable,highmobility
14.
15. APPLICATIONS OF GI-FI
1. House hold appliances :
-it makes the wireless home
of the future:
2. Office appliances :
3. Video information
transfer:
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 Wireless HD, an industry-led
effort to define a specification for the next generation consumer
electronics products.
18. 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.
