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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.

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High Quality Video Broadcast System for Next Generation Internet

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  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 1990 1994 1998 2002 2004 (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

  7. 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) 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

  10. Network Traffic Octets Time

  11. DV Conference SystemNetwork Traffic Output Octets Time

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