4g Communication Remake

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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