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Abstract--Gi-Fi will helps to push wireless communications to faster drive. For many years cables ruled the world.
Optical fibers played a dominant role for its higher bit rates and faster transmission. But the installation of cables
caused a greater difficulty and thus led to wireless access. The foremost of this is Bluetooth which can cover 9-10mts.
Wi-Fi followed it having coverage area of 91mts. No doubt, introduction of Wi-Fi wireless networks has proved a
revolutionary solution to “last mile” problem.
However, the standard’s original limitations for data exchange rate and range, number of changes, high
cost of the infrastructure have not yet made it possible for Wi-Fi to become a total threat to cellular networks on the
one hand, and hard-wire networks, on the other. But the man’s continuous quest for even better technology despite
the substantial advantages of present technologies led to the introduction of new, more up-to-date standards for data
exchange rate i.e., 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 will allow wireless transfer of audio and video data up to 5 gigabits per second, ten times
the current maximum wireless transfer rate, at one-tenth of the cost, usually within a range of 10 meters. It utilizes a
5mm square chip and a 1mm wide antenna burning less than 2m watts of power to transmit data wirelessly over
short distance, much like Bluetooth. The breakthrough will mean the networking of office and home equipment
without wires will finally become a reality. In this report we present a low cost, low power and high broadband chip,
which will be vital in enabling the digital economy of the future.
Wi-Fi (ieee-802.11b) and WiMax (ieee-802.16e) 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. In that it
offers faster information rate in Gbps, less power consumption and low cost for short range transmissions. GiFi
which is developed on a integrated wireless transceiver chip. In which a small antenna used and both
transmitter- receiver integrated on a single chip which is fabricated using the complementary metal oxide
semiconductor (CMOS) process. Because of Gi-Fi transfer of large videos, files will be within seconds.
In theory this technology would transfers GB‟s of our favorite high definition movies in seconds. So Gi-Fi
can be considered as a challenger to Bluetooth rather than Wi-Fi and could find applications ranging from new
mobile phones to consumer electronics. GiFi allows a full-length high definition movie to be transferred
between two devices in seconds to the higher megapixel count on our cameras, the increased bit rate on our
music files, the higher resolution of our video files, and so on.
We demand more than ever, but we also want this content to be transferred in the most expedient manner
possible. 802.11g and 802.11n are fine and all, but some people want to push the envelope even further. This
chip is 5mm per side and it can operate at a frequency of 60GHz while wi fi chip can operate only at 2.4GHz.
This have low power conception of 2 watt comes and comes with 1mm antenna.
The GiFi chip is a good news for personal area networking because there is no internet infrastructure
available to cop it with. It can have a span of 10 meters. The usable prototype may be less than a year away.
With the help of gifi chips the videos sharing can be possible without any hurdles. The GiFi chip is one of
Australia's most lucrative technology. This chip is 5mm per side and it can operate at a frequency of 60GHz
while wifi chip can operate only at 2.4GHz.
This have low power conception of 2 watt comes and comes with 1mm antenna.The complete GIFI
index is contained in the CRA's Guide To The General Index Of Financial Information (GIFI) For Corporations
which you can download or get in a paper or diskette version from your nearest tax services office.You will find
links to both the Guide To The General Index Of Financial Information (GIFI) For Corporations and the GIFI.
The Cost of GiFi chip is only $10. The purpose of the GIFI is to allow the CRA to collect and process
financial information more efficiently, for instance, the GIFI lets the CRA validate tax information
electronically rather than manually. Short-range wireless technology is a hotly contested area, with research
teams around the world racing to be the first to launch such a product. Professor Skafidas said his team is the
first to demonstrate a working transceiver-on-a-chip that uses CMOS (complementary metal-oxidesemiconductor)
technology the cheap, ubiquitous technique that prints silicon chips.
This means his team is head and shoulders in front of the competition in terms of price and power
demand. His chip uses only a tiny one-millimetre-wide antenna and less than two watts of power, and would
cost less than $10 to manufacture. It uses the 60GHz "millimetre wave" spectrum to transmit the data, which
gives it an advantage over WiFi (wireless internet).
WiFi'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 millimetre wave spectrum (30 to 300 GHz) is
almost unoccupied, and the new chip is potentially hundreds of times faster than the average home WiFi unit.
However, WiFi still benefits from being able to provide wireless coverage over a greater distance. Victoria's
minister for information and communication technology, Theo Theophanous, said it showed Victoria was at the
cutting edge of IT innovation. He praised the 27 members team which worked on the development of the chip.
The high-powered team included 10 PhDs students from the University of Melbourne and collaborated
with companies such as computer giant IBM during the research. The world‟s first transceiver integrated on a
single chip that operates at 60GHz on the CMOS (complementary metal–oxide–semiconductor) process, the
most common semiconductor technology, was announced today by NICTA, Australia‟s Information and
Communications Technology (ICT) Research Centre of Excellence. The development will enable the truly
wireless office and home of the future. As the integrated transceiver developed by NICTA is extremely small, it
can be embedded into devices.
The breakthrough will mean the networking of office and home equipment without wires will finally
become a reality. Researchers from NICTA‟s Gigabit Wireless Project, which is based out of NICTA‟s Victoria
Research Laboratory, are the first in the world to have developed an integrated transceiver, a complete
transmitter and receiver, on a single chip at 60GHz on CMOS.
NICTA‟s research involved a close collaboration with leaders in the global semiconductor industry.
The technology was developed using the IBM 130nm RF CMOS process. “Our collaborators IBM, Synopsys,
Cadence, Anritsu, Agilent, Ansoft and SUSS MicroTec have been critical to our success and we are grateful to
have had their valuable support,” Professor Skafidas said. “Our innovative design methodology and access to
leading design, test and measurement, and fabrication technology has allowed us to deliver this world-first
success.” NICTA researchers chose to develop this technology in the 57-64GHz unlicensed frequency band as
the millimetre-wave range of the spectrum makes possible high component on-chip integration as well as
allowing for the integration of very small high gain arrays.
“The availability of 7GHz of spectrum results in very high data rates, up to 5 gigabits per second to
users within an indoor environment, usually within a range of 10 metres,” Professor Skafidas said. NICTA Chief
Technology Officer, Embedded Systems, Dr Chris Nicol said the availability of a single chip, low cost, very
high speed wireless technology will transform the home entertainment industry. “For example, consumers will
be able to download a high definition DVD onto their personal digital assistants at a public kiosk in seconds,
take it home and play it directly onto their high definition TV.” 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 will allow 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.
NICTA researchers have chosen to develop this technology in the 57-64GHz unlicensed frequency
band as the millimetre-wave range of the spectrum makes possible high component on-chip integration as well
as allowing for the integration of very small high gain arrays. The available 7GHz of spectrum results in very
high data rates, up to 5 gigabits per second to users within an indoor environment, usually within a range of 10
metres. The new technology is predicted to revolutionise the way household gadgets talk to each other.
A. History of Gi-Fi
Melbourne University researchers have achieved up to 5Gbps data transfer rates on a wireless chip.
This is a lot faster than any current WiFi speeds. Dubbed GiFi, for obvious reasons, it can deliver the connection
speed up to ten meters. To fully comprehend how fast GiFi is, one of the researchers said that a full-length highdef
movie can be transferred from one device to another in a matter of seconds.
The GiFi chips is only 5mm in size and use current CMOS technology. Cost is only $10. I say, let‟s
begin mass producing it. Professor. Stan Skafidis of “ Melbourne University , Australiya “ is the inventor of
GiFi chip. The GiFi chip uses only a tiny one-millimeter-wide antenna and less than two watts of power, and the
GiFi chip would cost less than $10 to manufacture it.
According to the website of Melbourne University , Australia “by using GiFi an entire high-definition
movie from a video shop kiosk 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,” this statement about the GiFi was given
by Nick Miller. GiFi uses the 60GHz “millimetre wave” spectrum to transmit the data from one part to the
another part. It provides an advantage over WiFi (wireless internet)”. WiFi‟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 millimetre wave spectrum (30 to 300 GHz) is almost unoccupied, and the new chip is
potentially hundreds of times faster than the average home WiFi unit”. The best part about this new technology
GiFi is its cost effectiveness and power consumption, it only consumes 2 watts of power for its operation with
antenna(1mm) included and the development of Gi-Fi chip costs approximately $10( Rs 380) to manufacture. In
theory this technology would transfers GB‟s of our fav high definition movies in seconds.
So GiFi can be considered as a challenger to Bluetooth rather than Wi-Fi and could find applications
ranging from new mobile phones to consumer electronics. GiFi promises some serious game-changing wireless
transfer speeds for all types of consumer gadgets. The tiny silicon chip invented by professor ” Stan Skafidas “
is able to move data through the air as fast as 5 gigabits per second at a distance of just over 30 feet.
The GiFi uses the short-range wireless technology would potentially be a competitor or more than
likely a replacement for WiFi, and things like Bluetooth might want to look out as well. The transfer speeds
combined with the constantly increased storage capacities of small handheld devices could really take media
down some new avenues as well. The Age newspaper uses an example of transferring a high-definition movie
from a kiosk at a store to your mobile phone in seconds. Then that same movie can be transferred just as quickly
from the phone to our home computer or entertainment system to watch.
The world's first GiFi wireless network chip developed at Australia's peak federal technology incubator
has entered its commercialisation phase. Nicta chief executive David Skellern confirmed that the research
facility had formed a start-up around the new technology.
"It's not up to me to announce it. It's up to the company that has formed, but there is an activity going
on to spin out a company from Nicta that will take that technology to market," Dr Skellern said. The GiFi chip
could become one of Australia's most lucrative technology.
The Nicta gigabit wireless chip is 100 times faster than current WiFi chips and can be built for a tenth
of their cost. The team behind it picked up a gong at the international Innovic's Next Big Thing Award for
Innovation Excellence last July. Its development has been part of an international race to develop standards for a
super-high-speed gigabit version of the CSIRO's WiFi wireless networking technology, used almost universally
in laptops, mobile phones and home wireless network equipment. The fastest current WiFi standard is 802.11n.
"There'll be a kind of bunfight between all the protagonists for all the different approaches and one will
end up being a winner. We'll be in there proposing our solutions." The Australian contacted the CSIRO for
comment on whether Nicta would need its co-operation to develop the chip or use its patents, but neither of the
CSIRO's lead WiFi spokesmen, Tom McGinness and Nigel Poole, were available. A CSIRO spokeswoman said
the organisation had not been told Nicta was planning a GiFi start-up. Nicta gigabit wireless project leader Stan
Skafidas and some of his 15 staff were likely to join the startup when it began operating. Whether Professor
Skafidas would join the new company permanently was yet to be determined, Dr Skellern said.
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 will allow 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. NICTA researchers have
chosen to develop this technology in the 57-64GHz unlicensed frequency band as the millimetre-wave range of
the spectrum makes possible high component on-chip integration as well as allowing for the integration of very
small high gain arrays. The available 7GHz of spectrum results in very high data rates, up to 5 gigabits per
second to users within an indoor environment, usually within a range of 10 metres.
Most important aspect is 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. Their interest in this frequency band stems from a phenomenon of nature: the oxygen
molecule (O2) absorbs electromagnetic energy at 60 GHz like a piece of food in a microwave oven (see Fig 6 ).
This absorption occurs to a much higher degree at 60 GHz than at lower frequencies typically used for wireless
communications. This absorption weakens (attenuates) 60 GHz signals over distance, so that signals cannot
travel far beyond their intended recipient. For this reason, 60 GHz is an excellent choice for covert satellite-tosatellite
communications because the earth‟s atmosphere acts like a shield preventing earth-based
eavesdropping. Because of the rich legacy of applications in this band, a wide variety of components and
subassemblies for 60 GHz products are available today.
Another consequence of O2 absorption is that radiation from one particular 60 GHz radio link is quickly
reduced to a level that will not interfere with other 60 GHz links operating in the same geographic vicinity. This
reduction enables higher “frequency reuse” – the ability for more 60 GHz links to operate in the same
geographic area than links with longer ranges. As an example, let‟s compare two different links, one operating
near 60 GHz and the other at a frequency that is less affected by O2 absorption. The second link could be
operating at another unlicensed frequency such as 2.4 GHz or 24 GHz.
Consider a typical operating scenario where both links are operating over a distance of one kilometer
with the transmitter‟s power output adjusted such that the signal level at the receiver is 30 decibels (dB) above
the background noise. Fig 7 shows how the signal level drops with distance beyond the receiver in the two
cases. For the link unaffected by O2 absorption, it takes 32 kilometers (km) for the transmitted signal to drop
down to the background noise level. In other words, that signal would interfere with any other signal at that
same frequency for more than 30 kilometers beyond its original recipient. That reduces the number of links at
that frequency that can be installed in a fairly large area. Also, this means that the lower-frequency signal could
be intercepted up to more than 30 kilometers beyond its intended recipient. In contrast, the transmitted signal at
60 GHz drops down to the noise level in a 2.5 km.
Consequently, more 60 GHz links can be used in the same area without worrying about interference.
Also, the 60 GHz links are far more secure given their limited range.
The main invention of Gi-Fi is to provide higher bit rate. As the name itself indicates data transfer rate
is in Giga bits per second. Speed of Gi-Fi is 5 Gbps, which is 10 times the present data transfer. Because of this
high speed data transfer, we can swap large video, audio, data files within seconds. Because of wider availability
of continuous 7 GHz spectrum results in high data rates.
iv. Low Power Consumption
As the large amount of information transfer it utilizes mili-watts of power only. It consumes only
2mwatt power for data transfer of gigabits of information, where as in present technologies it takes 10mwatt
power, which is very high.
V. 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.
Two important characteristics of CMOS devices that is used in this technology is are high noise immunity
and low static power consumption. The same Gi-Fi system is currently used to print silicon chips.
The GiFi Chip developed by the Australian researchers. Gi-Fi allows a full-length high definition movie to
be transferred between two devices in seconds.
To the higher megapixel count on our cameras, the increased bit rate on our music files, the higher
resolution of our video files, and so on.