High Quality Video Broadcast System for Next Generation Internet

1
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
2
Characteristics of Internet

• best effort basis network
• Network Characteristics
• Jitter
• Network Packet losses
• Congestion Control
• affects Stream media(Stream packet)

3
Current Internet Video Broadcasting System

• Limitation in Network Bandwidth
• Massive compression of Video and Audio data
• Realtime Teleconferencing System
• High cost equipment

4
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 )

5
Required Network Bandwidth is expanding
Amount of network bandwidth(Byte)
1G
100M
10M
1M
100K
10K
1994
1998
2002
2004
1990
(Year)
6
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

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Internet Live BroadcastingSystem
Internet
PC
Router
8
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
9
Internet Connection from KRP(19990727)
1/166
2/166
2/166
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
Kyoto Univ. 7m
ASTEM Atomis 7m
3F KRP Atomis 7m
3F KRP Cisco7206
1/155
24/155
24/155
ATM Line
KRP
100BaseTX Ethernet
10
Network Traffic
Octets
Time
11
DV Conference SystemNetwork Traffic
Output Octets
Time