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    WCN - Unit 5

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    vmspraneeth
    Wireless ATM was introduced in 1992 to provide an integrated broadband application programming interface for mobile terminals to access the ATM network. The ATM Forum formed a working group in 1996 to standardize Wireless ATM. The first challenge is that ATM was designed for fast and reliable fiber optic networks, not wireless networks.

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    WCN - Unit 5

    Uploaded by

    vmspraneeth
    115 views23 pages
    Wireless ATM was introduced in 1992 to provide an integrated broadband application programming interface for mobile terminals to access the ATM network. The ATM Forum formed a working group in 1996 to standardize Wireless ATM. The first challenge is that ATM was designed for fast and reliable fiber optic networks, not wireless networks.

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    WCN

    Original Title

    WCN_UNIT 5 PPT

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    Wireless ATM was introduced in 1992 to provide an integrated broadband application programming interface for mobile terminals to access the ATM network. The ATM Forum formed a working group in 1996 to standardize Wireless ATM. The first challenge is that ATM was designed for fast and reliable fiber optic networks, not wireless networks.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    115 views23 pages

    WCN - Unit 5

    Uploaded by

    vmspraneeth
    Wireless ATM was introduced in 1992 to provide an integrated broadband application programming interface for mobile terminals to access the ATM network. The ATM Forum formed a working group in 1996 to standardize Wireless ATM. The first challenge is that ATM was designed for fast and reliable fiber optic networks, not wireless networks.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 23

    What is wireless ATM?

    Wireless ATM was first introduced in 1992 [RAY92],


    to provide for an integrated broadband
    application programming interface (API) to the
    ATM network for a variety of mobile terminals.
    In 1996, a WATM working group was formed under
    the ATM forum.
    The first fundamental challenge for the
    implementation of a WATM system is that the
    ATM was designed for fast switches connecting
    extremely wideband and reliable fiber
    transmission channels.
    Vision of the ATM forum’s Wireless ATM working group for an end-to-
    end ATM

    Sat
    elli Wired ATM
    te node
    lin
    Dy
    k
    na
    mic
    top
    olo
    gy
    Static

    topology
    Dedica
    ted

    microwave
    Ad hoc communication

    Typical packet frame format for the WATM


    ATM
    Wireless header header (5 ATM payload (48 bytes) Wireless trailer
    bytes)
    Reference Model of WATM:
    The basic elements of the traditional ATM networks are ATM switches and ATM
    terminals.
    The ATM forum defines two protocols
    1. user—network interface (UNI) protocol connecting user terminals to the
    switches
    2. network—network interface (NNl) protocol connecting two switches together
    [STA9Sb].
    The elements of a WATM network are shown in Figure

    Figure: Basic Architecture of a WATM Network


    Protocol entities in an ATM environment that supports wireless mobility
    MAC Structure of HIPERLAN-2

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