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Published byEdward Sherman Modified over 9 years ago
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High performance video transmission technology SVFTP (Swift Video File Transmission Protocol) KDDI R&D Laboratories Inc.
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2015/9/9KDDI R&D Laboratories Inc.1 Background Professional user’s requirement for video transmission over IP networks High-quality image High-speed transmission The existing data transmission protocol RTP (UDP type): Audio and video streaming FTP (using TCP): File transfer
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2015/9/9KDDI R&D Laboratories Inc.2 Issues Issues of typical data transmission protocol UDP: No guarantee of packet arrival TCP: Throughput performance degradation due to network environment Impact on image quality Impact on transmission speed
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2015/9/9KDDI R&D Laboratories Inc.3 Concept of SVFTP Advantage 1)High speed 4) Live transmission 2)High reliability 5) User authentication 3)Functionality Multi-connection (TCP/IP based) buffering Reassembling and buffering Encoder Decoder
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2015/9/9KDDI R&D Laboratories Inc.4 Throughput characteristics over wireless LAN (2Mbit/s) 200msec round trip delay and x% packet loss
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2015/9/9KDDI R&D Laboratories Inc.5 Actual performance of long-distance communication (800km) ftp
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2015/9/9KDDI R&D Laboratories Inc.6 Our product using SVFTP VistaFinder Store & Forward News Gathering System VistaFinder Bx Camcoder IP network Cable: ADSL, FTTH Wireless: 3G mobile phone, InmarsatM4 transmitterreceiver VistaFinder Rx
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2015/9/9KDDI R&D Laboratories Inc.7 Demonstration Client Sever Data (650Mbyte) Network environments - Round trip delay 1) 0msec 2) 10msec 3) 150msec
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