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Designed By
Balasubramaniyan.R
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4g mobile communication
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High speed data rates at 20 to 100 Mbps.
Anytime,Anywhere connection also known as"Mobile Broadband Everywhere".
MAGIC-Mobile multimedia Communication
Anytime,Anyone Global mobilitysupport integrated
wirelesssolution customized personal service.
4g mobile communication
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1G MOBILE COMMUNICATION
1G was an analog system, and was developed in the
seventies.
The basic cellular structure of mobile
communication.
1G is used primarily for voice communications.
EVOLUTION OF MOBILE
COMMUNICATION
"If you can dream it, you can do it", according
to this we can leap 3G to 4G along its featuresand future trends in mobile technology. In
wireless communication, mobile technology is
advanced and in this system 4G is the latest at
present.
WHAT IS 4G?
Wirelessbroadband connectivity,designed primarily for data
transport versus voice networks pulling double-duty as data
movers.
Faster and more reliable 100 Mb/s
Lower cost than previous generation . IPv6 Core .
Multi-standard wireless system Bluetooth, Wired,
WirelessOFDM is used.
IEEE standard 802.11
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1G MOBILE COMMUNICATION
1G was an analog system, and was developed in the
seventies.
The basic cellular structusre of mobile
communication.
1G is used primarily for voice communication.
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Poor voice quality,
Poor battery life,Large phone size,
No security,
Frequent call drops,
Limited capacity and Poor handoff reliability
DRAWBACKS BY G
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2G MOBILE COMMUNICATION
Circuit switched, developed in 1980s. Voice transmission and reception. 2.5G-as a stepping stone to 3G. 2G -GSM service. 2.5G -GPRS along with GSM.
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DRAMBACKS BY 2G
Inefficiency in usage of bandwidth.
GSM- do not support high data rates.
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3G MOBILE
COMMUNICATION
3G adds multimedia facilities to 2G phones,developed
in late 2002 & 2003. GLOBAL ROAMING.
Wide Band Voice Channel.
Clarity of voice .
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DRAWBACKS BY 3G;
High bandwidth requirement
High spectrum licensing fees
Huge capital
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4G MOBILE COMMUNICATION Characterized by high-speed data rates at 20 to 100
Mbps.
Suitable for high-
resolution movies and television,virtual
The "next dimension" of wireless communication.
Mobile speed -200km/hr.
Frequency band is 2-8 GHz. Ability for worldwide roaming to access cell
anywhere.
Networkof Networks.
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4G LAYERED ARCHITECTURE
Design of algorithms
that will lead to flexible
air interface ,whiledecreasing the terminal
complexity.
Cheaper and deliver high
quality of service than3G.
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FDMA,TDMA&CDMAFDMA:
Spectrum is cut into different frequencies.
Used in 1G.
Large bandwidth wastage.
TDMA:
Splitting the slots by time.
Used in 2G.
CDMA:
Allow user to sit on all frequencies at the same time &
each cell is identified by unique code.Bandwidth efficient.
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4G PRINCIPLE
TECHNOLOGIES
OFDM
UWB
SMART ANTENNAS
LONG TERM POWER PREDICTION
SHEDULING AMONG USERS ADAPTIVE MODULATION AND POWER
CONTROL
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FEATURES OF 4G
Support for interactive multimedia,.
IP based mobile system.
High speed, high capacity, and low cost-per-bit.
Seamless switching and a variety of QoS services
Better scheduling and call-admission-control
techniques,spectral efficiency.
Seamless network of multiple protocols and air interfaces An infrastructure to handle pre-existing 3G systems along
with other wireless technologies.
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COMPARISON OF 3G &4GAttribute 3G 4G
Frequency 1.6-2.5GHz 2-8GHzData Rate 385Kbps-2Mbps 20-100Mpbs
Access WCDMA/CDMA2
000
MC_CDMA/OFD
MSwitching Circuit/Packet Packet
Bandwidth 5-20MHz 100+MHz
ComponentDesign
Optimizedantenna,multiband adapters
Smartantenna,SWmultiband,wideband
radios
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advantages and
disadvantages of 4g
Advantages:
High usability: anytime, anywhere, and with any
technology.
Support for multimedia services at low transmission cost.
Higher bandwidth, tight network security.
Disadvantages:
The equipment required to implement a next generationnetwork is still very expensive. Carriers and providers
have to plan carefully to make sure that expenses are kept
realistic.
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CONCLUSION
Low cost high speed data will drive forward the fourth
generation (4G) as short- range communication emerges.
It is probable that the radio access network will evolve
from a centralized architecture to a distributed one. 4G is likely to enable the download of full length songs or
music pieces which may change the market response
dramatically.
Innovations in network technology will provide an
environment in which virtually anything is available,
anywhere, at any time, via any connected device.
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THANKYOU