High quality video broadcast system for next generation internet
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High Quality Video Broadcast System for Next Generation Internet. Kazunori Sugiura(CRL) Motonori Nakamura(Kyoto Univ.) Akihiko Machizawa(CRL)_ Takahiro Kikuchi(RCAC,TDI) Naoto Morishima(NAIST) Shin-ichi Nakagawa(CRL). With cooperation of: WIDE Project. Characteristics of Internet.

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High Quality Video Broadcast System for Next Generation Internet

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High quality video broadcast system for next generation internet

High Quality Video Broadcast System for Next Generation Internet

Kazunori Sugiura(CRL)

Motonori Nakamura(Kyoto Univ.)

Akihiko Machizawa(CRL)_

Takahiro Kikuchi(RCAC,TDI)

Naoto Morishima(NAIST)

Shin-ichi Nakagawa(CRL)

With cooperation of: WIDE Project


Characteristics of internet

Characteristics of Internet

  • best effort basis network

  • Network Characteristics…

    • Jitter

    • Network Packet losses

    • Congestion Control

    • affects Stream media(Stream packet)


Current internet video broadcasting system

Current Internet Video Broadcasting System

  • Limitation in Network Bandwidth

  • Massive compression of Video and Audio data

  • Realtime Teleconferencing System

    • High cost equipment


Requirements request

Requirements(Request)

  • High Quality Picture

    • NTSC Quality Video

  • High Quality Sound

    • CD Quality Audio

  • Delayless transfer

  • low cost solution

  • Mid range bandwidth( 10Mbps and higher )


  • Required network bandwidth is expanding

    Required Network Bandwidth is expanding

    Amount of network bandwidth(Byte)

    1G

    100M

    10M

    1M

    100K

    10K

    1990

    1994

    1998

    2002

    2004

    (Year)


    Development of network bandwidth

    Development of Network Bandwidth

    • Use of Mid-High speed network becomes realistic

    • appearance of high-speed networks

      • ATM

      • WDM

    • High Speed LANs

      • 100BaseT, Gigabit Ethernet


    Internet live broadcasting system

    Internet Live BroadcastingSystem

    Internet

    PC

    Router


    Internet live broad and multi cast system

    Internet Live Broad and Multi-cast System

    PC Monitor

    Wireless Mic.

    Audio Selector

    Keyboard

    Video Input

    DV Video recorder

    Monitor, Antenna

    RealServer

    DV Video Recorder

    Real Client

    Video Selector

    NTSC PAL SECAM

    RGB Scan Converter

    Main Power Supply

    Main Power Supply

    Rack 1

    Rack 2


    Internet connection from krp 19990727

    Internet Connection from KRP(19990727)

    2/166

    2/166

    1/166

    NTT

    Atomis 7M

    Tokyo Univ.

    Megalink

    Tokyo Univ.

    aa03

    Tokyo Univ.

    aal3

    0/166

    1/166

    KDD

    Atomis 7M

    KDD

    Cisco7507

    JGN

    FORE

    1/166

    Internet

    1/166

    3F KRP

    Cisco7206

    3F KRP

    Atomis 7m

    ASTEM

    Atomis 7m

    Kyoto Univ.

    7m

    1/155

    24/155

    24/155

    ATM Line

    KRP

    100BaseTX

    Ethernet


    Network traffic

    Network Traffic

    Octets

    Time


    Dv conference system network traffic

    DV Conference SystemNetwork Traffic

    Output

    Octets

    Time


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