JAMIA INSTITUTE OF ENGINEERING AND MANAGEMENT STUDIES, AKKALKUWA

1. Gi-Fi Technology
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CHAPTER 1
INTRODUCTION
Wi-Fi (IEEE-802.11b) and Wi-Max (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.
1.1 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. 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 millimeter-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
meters. It satisfies the standards of IEEE 802.15.3C
Fig 1.1: Gi-Fi Chip

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Wireless is a unique technology. Despite being over a century old, it continues to improve at
an ever increasing rate. Yet all the past, present and future improvements stem from one
underlying process. It can transfer large videos and audio files within seconds. A set of new
technologies are just coming into early use. 802.11 ac promises a Gigabit per second from a
single access point; LTE- A (Long Term Evolution- Advanced) is cutting out a path to full
mobile broadband integrated with direct local device to device communications and smart
spectrum reuse is easing the bandwidth crunch. Further out, the promise of terabit systems
combines with innovative reuse of existing ideas to provide more services further afield than
ever before.
Fig 1.2: Gi-Fi Integration
Gi-Fi was developed at the National Information and Communication Technology Research
center in Melbourne, Australia where researchers has developed a wireless technology which
gives high speed data transfers with a speed of up to 5 Gbps. In wireless technology, the base
station is the central location that collects all traffic to and from subscribers within a cell. The
indoor base station equipment consists of channel groups. The best feature of this technology
is its power consumption. While Wi-Fi technology is also used to cover larger distances, its
design is mostly suitable for indoor-outdoor clients, rather than point- to-point links. This
technology also has full reconfiguration capability to compensate for fabrication
imperfections and it optimizes on C- band with a channel crosstalk as low as -20 Db. So, Gi-
Fi can be considered as a best challenger to Wi-Max and can find so many applications
ranging from new mobile phones to consumer electronics.

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CHAPTER 2
LITERATURE SURVEY
 S. Dheeraj and S. Gopichand et.al, 2002 proposed a model in which they implement a
technology which gain flexibility of infrastructure, reduce capital expenditure, gain
advantages over competitors and to solve business problems.
 Gowtham S Shetty et.al, 2006 proposed that wireless dual band router and wireless
dual band USB adapter are based on the next generation Wi-Fi technology, which is a
new wireless computer networking standard in the 802.11 ac family.
 Ross and John et.al, 2007 proposed a model that MIMO (Multiple input Multiple
output) increase the capacity 10 times or more and simultaneously improve the
radiated energy efficiency of the order of 100 times and the system enables significant
reduction of latency on the radio interface using the low numbers and be forming in
order to avoid feeding pipes.
 Sachin Abhyankar et.al, 2009 proposed a model that the introduction of Wi-Fi
wireless network has proved a solution to Bluetooth problem, the limitations for data
exchange rate and range.
 Ramirez et.al, 2011 proposed that the radio links can be operated in indoor
environments with low power transmission and with reduced fading margin, making
ultra-wide band systems good.

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CHAPTER 3
EXISTING SYSTEM
 Evolution of Network:
Fig 3. Evolution of Network
3.1 Wi-Max
There are wireless broadband systems that offer fast web surfing without being getting
connected through cable. Although WI-MAX Can potentially delivers data rates of more than
30 megabits per second, yet it provides offer average zero data rate of 6 Mbps and often
deliver less, making the service significantly slower than the hardwired broadband. The
actual cost of the data available using WI-MAX transmitting station would send data to WI-
MAX enabled computers or routers.
3.2 Wi-Fi
Wi-Fi is a local area wireless computer networking technology that allows electronic devices
to network, mainly using the 2.4 gigahertz (12 cm) UHF (Ultra High Frequency) and 5
gigahertz (6 cm) SHF ISM radio bands. The Wi-Fi alliance defines Wi-Fi as any “wireless
local area network” (WLAN) product based on the Institute of Electrical and Electronics
Engineers (IEEE) 802.11 standards”. “Wi-Fi” is a trademark of the Wi-Fi alliance.
The “Wi-Fi certified” trademark can only be used by Wi- Fi products that successfully
complete Wi-Fi alliance interoperability certification testing. Many devices can use Wi-Fi,
e.g. personal computers, video-game consoles, smartphones, digital cameras, tablet
computers and digital audio players. These can connect to a network resource such as the
internet via a wireless network access point. Such an access point (or hotspot) has a range of
about 20 meters (66 feet) indoors and a greater range outdoors. Hotspot coverage can be as
small as a single room with walls that block radio waves, or as large as many square
kilometers achieved by using multiple overlapping access points.

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3.3 Bluetooth Verses Wi-Fi
Fig 3.3. Bluetooth vs. Wi-Fi
From the table we can conclude that the bit rate of Bluetooth is 800Kbps and Wi-Fi has
11Mbps. Both are having power consumptions 5mw and 10mw. They have 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 GiFi
Technology.

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CHAPTER 4
PROPOSED SYSTEM
In Gi-Fi technology, we use the frequency division duplex for both transmission and
receiving. Here the FDD (Frequency division duplex) transmissions require a guard band
between the transmitter and receiver frequencies.
4.1 Fundamental Technologies in 802.15.3C:
This millimeter-Wave WPAN will operate in the new and clear band including 57-64 GHz
unlicensed band defined by FCC 47 CFR 15.255. The millimeter-wave WPAN will allow
high coexistence (close physical spacing) with all other microwave systems in the 802.15
family of WPANs.
4.2 Frequency-Division Duplex:
Frequency division duplex, FDD, uses the idea that the transmission and reception of signals
are achieved simultaneously using two different frequencies. Using FDD it is possible to
transmit and receive signals simultaneously as the receiver is not tuned to the same frequency
as the transmitter. The use of an FDD system does enable true simultaneous transmission and
reception of signals. However, two channels are required and this may not always use the
available spectrum efficiently. As there is a frequency separation between the uplink and
downlink directions, it is not normally possible to reallocate spectrum to change the balance
between the capacity of the uplink and downlink directions if there are changing capacity
requirements for each direction.
4.3Time Division Duplex:
Time-Division Duplex (TDD) is the application of time-division multiplexing to separate
outward and return signals. It emulates full duplex communication over a half-duplex
communication link. As uplink traffic increases, more channel capacity can dynamically be
allocated to that, and as it shrinks it can be taken away.

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4.4. Data transmission
As the volume of data and the size of files transmitted via the internet has increased, so has
the importance of ensuring that the data is transmitted in the fastest, most efficient way
possible. Similarly, data compression is used in software applications to reduce the size of
data files by reducing or eliminating redundancy. The patent issues surrounding the use of
GIF for online graphics are of particular interest to web developers who, of necessity, rely
upon and make use of industry- sponsored and supported standards in applications created for
the internet.
4.5 Transmission of digital video and audio signals:
This method of transmitting of digital video and audio signals could have important
implications for parties wishing to transmit digitalized content such as graphics or music via
the internet for a fee. This method describes a processor of digitized materials to receive a
transfer of money via a telecommunication line, connect electronically to second party, and
transmit the digitized materials to the second party who then stores the materials locally.
Thus, it becomes relevant to emerging areas of internet commerce such as the sale and
distribution of digitized music via web sites. A wireless device implements complex
functionality and requires a large amount of circuitry and consequently, requires a large
conventional package to enhance overall performances.

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CHAPTER 5
ADVANTAGES & DISADVANTAGES
ADVANTAGES:
1. Capacity of High Speed Data Transfer
The data transfer rate of Gigabit wireless technology is in Gigabits per second. Speed of Gi-
Fi 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.
2. 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 new chip is
potentially hundreds of times faster than the average home Wi-Fi technology.
3. Power Consumption
Power consumption of the present technologies such as Wi-Fi and Bluetooth are 5 mili watts
and 10 mili 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.
4. 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.
DISADVANTAGES OF GI-FI:
 Not possible for long distance.
 High frequency-band required.

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CHAPTER 6
APPLICATIONS
1. Household appliances:
It makes the wireless home and office of the future
2. Office appliances:
As it transfers data at high speeds that made work very easy.
3. Video information transfer:
We can transfer at a speed of gbps.
4. Inter-vehicle communication system:
We can communicate inter-vehicle through sender & receiver.

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CONCLUSION & FUTURE SCOPE
CONCLUSION:
In this report Gi-Fi technology is defined that 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 that operates at 60GHz on the CMOS
process. This technology removes cables that for many years curled the world and provides
high speed data transfer rate. The comparison that is performed between Gi-Fi and existing
wireless technologies in this paper shows that these features along with some other benefits
such as Low-cost chip, No Frequency Interference, Low Power Consumption and High
Security that are explained in detail in this paper, makes it suitable to replace the existing
wireless technologies for data transmission between devices that are placed in the short
distances from each other.
FUTURE SCOPE:
A completely integrated single chip transceiver has been fabricated, tested and demonstrated
in Gi-Fi chip and a transceiver with integrated phased array antenna on 65nm CMOS
technology has been sent for fabrication. Gi-Fi technology demonstrates the world’s first
fully integrated transceiver on CMOS technology operating at 60 GHz and provides new
technique for integrating antennas on CMOS. Demonstrations of Gi-Fi technology can be
arranged showing the huge potential it has to change the way consumers use their in-home
electronic devices. The Gi-Fi team is looking for partners interested in commercializing its
60GHz chips and with growing consumer adoption of High-Definition (HD) television, low
cost chip and other interesting features of this new technology it can be predicted that the
anticipated worldwide market for this technology is vast. Within next few years, we expect
Gi-Fi to be the dominant technology for wireless networking. By providing low-cost, high
broadband access, with very high speed large files swapped within seconds it could develop
wireless home and office of future. As the integrated transceiver 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. The Gi- Fi integrated transceiver chip
may be launched by the starting of next year by NICTA.

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REFERENCES
1. Electronista Staff, ― NICTA Gi-Fi Chipset,
2. Gowtham S Shetty, ― Gi-Fi: Next Generation Wireless Technology
3. S.Dheeraj, S.Gopichand, ― Gi-Fi: New Era of Wireless Technology
4. www.wikipedia.org
5. www.studymafia.com