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NEXT GENERATION WIRELESS TECHNOLOGY
Presented by : Guided By:
Yogesh.P mr ilyaz k m
Why Gi-Fi is used
Bluetooth & Wi-Fi & Gi-Fi
Architecture of Gi-Fi
Features / Advantages
The name itself specifies its gigabit
Gi-Fi or Gigabit Wireless is the world's first
transceiver integrated on a single chip.
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.
Professor Stan Skafidis –The Man Behind
Why Gi-Fi ?
The common Wireless technologies currently used
The disadvantages of existing technologies; ie
High power consumption.
Low range of frequency operation.
gave invention to this new technology.
SPECIFICATION BLUETOOTH WI-FI GI-FI
Frequency 2.4Ghz 2.4Ghz NA
Primary Application 10 metres 91 mts 10 mts
Data transfer rate 800kbps 11Mbps 5Gbps
Power consumption Low Medium Low
Primary Devices Mobiles phones,
Primary Application WPAN cable
WLAN Ethernet Both
1998 1990 Under development
Comparision between Bluetooth,Wi-Fi and Gi-Fi
Disadvantages of Bluetooth & Wi-Fi
The bit rates of Bluetooth is 800 Kbps and Wi-
Fi has maximum of 11 Mbps
Both are having power consumptions 5mw
The lower frequency of operation 2.4GHz.
so, to have higher data transfer rate at lower
power consumption we move onto Gi-Fi
FUNDAMENTAL TECHNOLOGIES IN 802.15.3C
It transmits multiple signals
simultaneously across the
wireless transmission paths
within separate frequencies to
It uses ultra wide band
Which consists of :
1. High bit rate
2. High security
3. Faster data transmission GIGABIT WIRELESS PAN NETWORKS
Gi-FiThe core components of a GI-FI system is the
subscriber station which available to several access
It supports standard 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.
High bit rate:
5 gigabits persecond,
easily swapping video,audio,data files
2 watt power compared to 10 watt power
uses IEEE 802.15.3c standards
Applications of Gi-Fi
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
3. Video information transfer:
We can transfer at a speed of gbps.
4. Media access control (MAC) and imaging and
Gi-Fi Access Devices
HOW IT WORKS ??
Here we would use a time division duplex for
both transmission and receiving.
The data files are converted from IF range to RF
60Ghz range by using 2 mixers.
We will feed this to a power amplifier, which
feeds millimeter-wave antenna.
The incoming RF signal is first converted to an
IF signal centered at 5 GHz ,and then to normal
data ranges, here we will use heterodyne
construction for this process to avoid leakages
due to direct conversion.
Due to availability of 7 GHz spectrum the total
data will be transferred within seconds.
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.
mw-WPAN for ultra fast data exchange has
prompted companies like Intel, LG, Matsushita
(Panasonic), NEC, Samsung, SiBEAM, Sony
Specifically, WirelessHD has a stated goal of
enabling wireless connectivity for streaming
high- definition content between source devices
and high-definition displays.
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 with in
seconds 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.