Gi-Fi (Gigabit Fidelity) or Gigabit Wireless is the world's first handset incorporated on a solitary chip that works at 60GHz on CMOS process. It transfers data at the rate of 5Gbps It provides low power utilization in a scope of 10 meters . The most striking feature of Gi-Fi technology is high security. Gi-Fi refers to the faster versions of IEEE 802.11 standards. It’s a 5x5 mm chip , Its small size makes it portable and deployment is quick. Gi-Fi is a remote transmission framework which is multiple times quicker than Wi-Fi . Now the files like videos, audios, or anything which has a large amount of data can be transferred from one device to another in a matter of seconds.

1. HKBK COLLEGE OF ENGINEERING
A seminar
on
Gi-Fi technology

2. Presented by
Misbha Afreen
1HK15IS029
VIII sem
ISE
Under the guidance of
Prof.Deva Kumari
Dept of ISE
HKBKCE

3. Content
 Introduction
 Architecture of Gi-Fi
Working of Gi-Fi
Technology Considerations
 Network Evolution
Features /Advantages
 Applications
Conclusion
References

4. Introduction
 Gi-Fi (Gigabit Fidelity) or Gigabit Wireless is the world's first handset incorporated on a
solitary chip that works at 60GHz on CMOS process.
 It transfers data at the rate of 5Gbps
 It provides low power utilization in a scope of 10 meters .
 The most striking feature of Gi-Fi technology is high security.

5. Introduction
 Gi-Fi refers to the faster versions of IEEE 802.11 standards.
 It’s a 5x5 mm chip , Its small size makes it portable and deployment is
quick.
 Gi-Fi is a remote transmission framework which is multiple times
quicker than Wi-Fi .
 Now the files like videos, audios, or anything which has a large amount of
data can be transferred from one device to another in a matter of seconds.

7. Architechture of Gi-Fi
A 5x5 mm chip that can be embedded in any device which offers
transmission of data at the rate of 5Gbps

8. Data files
Radio
Frequency
Wave
Antenna
Infrared
Frequency
Local
Oscillator 1
Local
Oscillator 2
Mixer 2Mixer 1
Power amplifier
Architechture of Gi-Fi
Transmitter:

9. Filter
Local
Oscillator 1
Local
Oscillator 2
Mixer 2Mixer 1
RF amplifier
IF Amplifier
Architechture of Gi-Fi
Radio
Frequency
Infrared
Frequency
Receiver:

10. Working
 In this technology Time division duplex (TDD) is used for transmitting and receiving.
 Data files are converted from IF range to RF 60GHz range with the help of 2 mixers.
 The output is fed into a power amplifier, which feeds millimeter wave antenna.
Transmitter:

11. Working
 The incoming RF signal is first converted to an IF signal at 5GHz and then to normal data ranges.
 To avoid leakage due to direct conversion, heterodyne construction is used for this process.
 The total data is transfer within few second due to availability of 7GHz spectrum.
 As mentioned above milli meter wave antenna is used for this technology, which operates at 60GHz
frequency (Unlicensed band). Because of this band we achieve high data rates. In unlicensed band
energy propagation has unique characteristics that provide additional benefits such as excellent
immunity to co-channel interference, high security and frequency reuse.
Receiver:

12. Technology Considerations
 Gi-Fi uses Time division duplex (TDD), the duplex communication links i.e the uplink and downlink
both are separated by the portion of different time slots in the similar frequency band.
 It is a transmission scheme that allows asymmetric flow for uplink as well as downlink data
transmission
 For uplink and downlink transmission, Users are allocated time slots. This method is extremely
advantageous in case there is an asymmetry of uplink and downlink data rates.
 TDD divides a data stream into frames and allocates different time slots to forward and reverse
transmissions, thereby allowing both types of transmissions to share the similar transmission medium.
uplink downlink
frequency
Guard band

13. Cables Optical Fiber
Wireless Access
WiMax
Wi-Fi
Bluetooth
Gi-Fi
Network evolution

14. Cables
 Cables utilizes copper cable (coax) and data is sent via
electricity. This is how we’ve watched cable television
for decades.
 Transmission is slower in cables
 Standard Cable-internet speeds vary by provider and
range from 10 Mbps to 1 Gbps download speeds and
upload speeds from 3 Mbps up to 50 Mbps.
 Cables can share a connection, hence it has no security.

15. Optical fibres
 Fiber-optic cable is considered more advanced. It uses
small, flexible strands of glass to transmit information as
light.
 Fiber-optic cable is just flat out faster. Fiber offers
speeds up to 10 Gbps, symmetrical upload and
download bandwidth.
 A dedicated line protects you against latency

16. Wireless Access
 To send data over the airwaves, the IEEE has developed
the 802.11 specification, which defines half-duplex
operations using the same frequency for send and
receive operations on a WLAN.
 The discovery of Hertz created a platform via airways to
transfer the same data, as electrical signals, without the
use of wires.
 Therefore, the simple answer to the relationship
between WLANs and the other discoveries previously
mentioned is that a WLAN is a LAN that does not need
cables to transfer data between devices.

17. Bluetooth
 Bluetooth is a wireless technology used to transfer
data between different electronic devices.
 It operates in the range of 10m.
 At the physical layer, the Bluetooth RF transceiver is
positioned.
 At around 79 Bluetooth channels are placed with a
space of 1MHz.
 Transmission of data and voice are achievable at short
distances and thereby creating Wireless PANs.

18. Wi-Fi
 Wi-Fi is a high speed internet connection and network
connection without use of any cables or wires.
 The radio waves are keys which make the Wi-Fi
networking possible. It operates in 100m range.
 The computers and cell phones are ready with Wi-Fi
cards.

19. WiMAX
 WiMAX stand for Worldwide Interoperability for
Microwave Access. Based on 802.16 standards.
 WiMAX is similar to the wireless standard known as Wi-
Fi, but on a much larger scale and at faster speeds.
 WiMAX has a very flexible MAC layer that can
accommodate a variety of traffic types, including voice,
video, and multimedia, and provide strong QoS.
 Robust security functions, such as strong encryption and
mutual authentication, are built into the WiMAX
standard.

20. Gi-Fi
 It allows 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.
 Researchers chose the 57–64 GHz unlicensed frequency
band since the millimetre-wave range of the spectrum
allowed high component on-chip integration as well as the
integration of very small high gain arrays.
 It could be incorporated in many devices like camcorders,
TV, PC, Routers etc

21. SPECIFICATION BLUETOOTH WI-FI WIMAX GI-FI
Frequency 2.4Ghz 2.4Ghz 2.3-3.5Ghz 57-64Ghz
Operating range 10 m 91 m 50km 10 m
Data transfer
rate
800 kbps 11Mbps 1Gbps 5Gbps
Power
consumption
5mW 10mW 5mW <2mW
Primary devices Mobile phones,
PDA’s, consumer
Electronics etc
Notebook
computers,
Desktop
computers,
Servers
Laptops, tablets
and ultra-mobile
personal
computers
(UMPC)
All devices
Comparison between
Bluetooth, Wi-Fi, Wimax & Gi-Fi

22. Why Gi-Fi?
The reason for pushing into Gi-Fi technology is because of
 Faster transmission rate
 Less power consumption
 High range of frequency operation

23.  Multi-gigabit wireless technology that removes the need for cables
between consumer electronic devices.
 More than 100 times faster than current short-range wireless
technologies. Allows wireless streaming of uncompressed high-definition
content.
 Operates over a range of 10 metres without interference.
 Entire transmission system can be built on a cost effective single silicon
chip.
 Operates in the unlicensed, 57-64 GHz spectrum band.
Features of Gi-Fi

24.  Removes need for cables to connect consumer electronics devices.
 Low-cost chip allows technology to be readily incorporated into
multiple devices.
 Secure encryption technology ensures privacy and security of
content.
 Simple connection improves the consumer experience.
 Enhancements to next generation gaming technology.
Advantages of Gi-Fi

25. Applications
Videos or movies transfer made easy :
With the help of Gi-Fi , a whole cd/dvd kiosk can
transferred and viewed

26. Applications
Office work made easy:
As it transfers a huge amount of data, organisations can
backup their data easily. They can control and manage
things easily.

27. Applications
House hold applications:
Makes wireless homes and offices of the future

28. Applications
Inter-Vehicle communication:
In vehicle to vehicle short distance spontaneously
created So exchange the data between vehicles is
made possible.

29. Applications
In sports-stadium video broad casting:
In sport stadium to distribute about the
information or any advertisements this is the easy
and immediate construction of temporal
broadband network.

30. Video Link
https://www.youtube.com/watch?v=Yw6G0_RjdSU

31. Conclusion
 Wi-Fi products based on next generation gigabit per second 802.11(WLAN) technology will
be emerging on the market soon to address use cases that demand higher throughput.
 802.11ac (wireless networking standard) will evolve in the 5 GHz bands with wider channels
and multi-user capability to address broader coverage use cases typical of Wi-Fi devices,
such as higher resolution video coverage around the home.
 802.11ad(MGWS-multiple giga-bit wireless systems) will address personal area networking
use cases new to 802.11 such as wireless docking with multi-gigabit per second links based
on large amount of available spectrum in the 60 GHz band.
 802.11ad will make use of directional antennas and beamforming to enhance link quality,
and modifies channel access to address directionality and spatial reuse.

32. References
[1] Bluetooth (2009). [Online]. Available at: http://www.bluetooth.com.
[2] Gi-Fi. [Online]. Available at: https://www.nicta.com.au/__data/assets/pdf_file/0005/21 200/GiFI.pdf
[3] Gi-Fi. Wikipedia, the free encyclopedia. Available at: http://en.wikipedia.org/wiki/Gi-Fi
[4] J. Karaoguz. High-Rate Wireless Personal Area Networks (2001). IEEE Communication Magazine (vol.
39 Issue 12, pp.96-102).
[5] NICTA. [Online]. Available at:http://www.nicta.com.au
[6] Rakesh Kumar Jha, Upena D Dalal (2012). A Journey on WiMAX and its security issues. In International
Journal of Computer Science and Information Technologies, 2012 (vol. 1, pp.256-263).
[7] Rakesh Kumar Jha, UD Dalal (2011). Security Analysis of WiMAX Network: With Misbehavior Node
Attack. In Information and Communication Technologies (WICT).
[8] S. V. Saboji, C. B. Akki (2012). Congestion Control in 4G Wireless Networks Using Coalition Game.

33. Thank you 