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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

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 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

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