wireless communication ppt

1. A
Seminar on
Gigabit Fidelity in Wireless
Communication
Under the Guidance Of: Presented By:
Ms. Ruchi Varshney Aditya Sehgal
Assistant Professor Roll No. :1408231006

2. Gigabit Fidelity simply called Gi-Fi
Gi-Fi
Gigabit Fidelity
 Commonly known as Gigabit Wireless Technology.
 The Next Generation Wireless Technology
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3. Contents
 Introduction
 Network evolution
 Man Behind Gi-fi
 Currently Used Technologies
 Disadvantages of Bluetooth and Wi-Fi
 Gi-Fi
 Comparison of Gi-Fi with existing Technologies
 Architecture of Gi-Fi
 Working of Gi-Fi
 Time-division Duplex
 Working in 60 Ghz
 Ultra Wide Band Frequency Usage
 Advantages of Gi-Fi
 Applications And Future Scope
 Conclusion
 References
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4. Introduction
• 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.
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5. Network Evolution
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BluetoothWi-Fi
Wi-MAX
Cables Optical Fiber
Fig. 1 Network Evolution
Bluetooth
Cables Optical Fiber

6. Man Behind Gi-fi
Professor Stan Skafidis of Melbourne University
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7. Currently Used Technologies
Bluetooth Wi-Fi
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8. Disadvantages of Bluetooth
and Wi-Fi
Characteristics Bluetooth Wi-Fi
Power
Consumption
5 mw 10 mw
Data Transfer Rate 800 Kbps 11 Mbps
Frequency 2.4 Ghz 2.4 Ghz
Range 10 meters 100 meters
 The disadvantages of these technologies gave
invention to Gi-Fi technology.
Table 1 : Characteristics of Bluetooth and Wi-Fi
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9. Gi-Fi
 Gi-Fi stands for Gigabit Wireless.
 Worlds first transceiver integrated on a single chip.
 It operates at 60 GHz on the CMOS process.
 Allows wireless transfer of audio and video data at up
to 5 Gbps.
 Gi-Fi has ten times the current maximum wireless
transfer rate usually within a range of 10 meters.
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10. Comparison of Gi-Fi with existing
Technologies
Characteristics Bluetooth Wi-Fi Gi-Fi
Specification
authority
Bluetooth SIG IEEE WECA NICTA
Primary devices Mobile phones,
consumer,
electronics devices.
Smartphones,
desktop computers,
servers.
Smartphones, home ,
consumer, electronics
devices.
Power
consumption
5 mw 10 mw 2 mw
Development
start date
1998 1990 2004
Data transfer
rate
800 kbps 11 mbps 5 gbps
Range 10 m 100 m 10 m
Frequency 2.4 Ghz 2.4 Ghz 57-60 Ghz
Table 2: Comparison of Gi-fi with existing Technologies
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11. Architecture of Gi-Fi
 The core component of a Gi-Fi system is
the subscriber station.
 It supports standard of IEEE 802.15.3C Wireless
PAN.
 An 802.15.3C based system often uses small
antenna at the subscriber station.
 It supports line of sight operation.
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12. Architecture of Gi-Fi(cont.)
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Fig. 5 Gi-Fi Architecture

13. Working of Gi-Fi
 Use Time Division Duplex for both transmission and receiving.
 Data files are up converted from IF range to RF60 Ghz range
by using 2 mixers.
• Fed this to a power amplifier, which feeds millimeter wave
antenna.
Fig. 6 Transmission (uplink)
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14. Working of Gi-Fi (Cont.)
 The incoming RF signal is first down converted to an IF signal
centered at 5 GHz and then to normal data ranges.
Fig. 7 Reception (downlink)
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15. Time-division Duplex
 Time-Division Duplex (TDD) is the application
of time-division multiplexing to separate
outward and return signals.
Fig. 8 Time-division Duplex
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16. Working in 60 Ghz
 This frequency band is currently mostly unused.
 High oxygen absorption at 60GHZ (10-15 dB/Km).
 60GHz is an excellent choice for covert communications.
Fig.9 Oxygen Attenuation vs Frequency
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17. Ultra Wide Band Frequency Usage
 Technology with high bit rate, high security and
faster data transmission.
 Ultra-Wideband (UWB) is a technology for
transmitting information spread over a large
bandwidth (>500 MHz) that should, be able to share
spectrum with other users.
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18. Advantages of Gi-Fi
• High speed of data transfer
• Low power consumption
• High security
• Cost effective
• Small size
• Highly portable
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19. Applications And Future Scope
 Household appliances
Fig.10 Household appliances
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20. Applications And Future Scope(Con.)
 Office appliances
Fig. 11 Office appliances
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21. Applications And Future Scope(Con.)
 Broadcasting video signal transmission system in sports
stadium.
 Inter-vehicle communication
system.
 Internet access in Railway
coaches.
 Wireless PAN Network.
Fig. 12 Video Broadcast
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22. Conclusion
 The Gi-Fi integrated transceiver chip will be launched by
starting of next year by NICTA, Australia.
 Due to less cost of chip so many companies like Intel, LG,
Matsushita (Panasonic), NEC, Samsung, Si-BEAM, Sony
and Toshiba etc. are looking forward to launch with lower
cost.
 Within five years, we expect GiFi to be the dominant
technology for wireless networking.
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23. References
• Nandhakumar, Abhishek Pratap Singh-“Neoteric Innovation In Gi-Fi Technology”,
International Journal of Emerging Trends & Technology in Computer Science
(IJETTCS). Volume 4, Issue 2, March-April 2015, ISSN 2278-6856.
• J.Santhan Kumar Reddy-“Gi-Fi Technology”, International Journal of Advanced
Scientific and Technical Research. Volume 1, Issue 3, January-February 2013, ISSN
2249-9954.
• P.Srikanth, J.R.Thresphine-“Innovative With GI-FI Technology”, International Journal
of Advanced Research in Computer Science & Technology (IJARCST 2014).Volume
2, Issue 1, Jan-March 2014 ISSN : 2347 – 8446.
• Desai Vaishali J., Ramani Shrusti K.-“Gi-Fi, The Technology of New Era”,
International Refereed Journal of Engineering and Science (IRJES). Volume 3, Issue
9 (September 2014), ISSN (Online) 2319-183X, (Print) 2319-1821.
• H. Sharma, S. Sharma, P. K. Nathaney, N. Yadav-“GI-FI (A New Wireless
Technology)”, International Journal of Mobile & Adhoc Network. Volume2, Issue 2,
May 2012.
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24. THANK
YOU

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25. Any Queries?
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