Transcript Video over IP

The Explosion of
Video in Telecom
Dr. Phil Hippensteel
[email protected]
(717) 448-0552
Produced by and Copyright, 2012
Phil Hippensteel Associates
How Big is IT?
 “Cisco Predicts Zetabyte of Video by
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2015”
“Microsoft Buys Skype for $8.5 Billion.”
”Video conferencing becomes
commonplace over the Internet
“NetFlix Becomes Number One Internet
App in the Evening”
Internet TV Takes Off
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Phil Hippensteel Associates,
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Forms of Video
 Type 1: Broadcast one source to many
receivers: over-the-air, Comcast, FIOS, UVerse.
 Type 2: One-to-one or one-to group: video
conferencing.
 Type 3: Streamed from a server: Netflix,
Hulu +, YouTube.
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Phil Hippensteel Associates,
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Three Main Techniques
 Analog or digital broadcast from antenna to
antenna.
 UDP over IP protocols (Comcast, FIOS)
 Delivery in Internet type packets.
 No retransmission of lost data.
 Very high quality network needed.
 TCP/IP or HTTP/TCP/IP (Internet TV, YouTube,
Netflix)
 Retransmissions of lost data possible.
 Minimum of several seconds/minutes of delay to start
play out.
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Phil Hippensteel Associates,
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What Are the Trends?
 Over the air is decreasing.
 Video conferencing is dramatically
increasing.
 Streaming is increasing.
 End points are becoming very diverse.
 In size
 In connection method.
 Wireless connections are increasing.
Produced by and Copyright, 2012
Phil Hippensteel Associates,
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What are the Challenges?
 Video can consumes huge amounts of
bandwidth.
 1280i HD takes about 8-20 Mbps.
 Typical mobile bandwidth: 1-3 Mbps (average,
not peak).
 Video traffic should be segregated on
networks.
 Mixing with bursty data is problematic.
 Such network designs can be difficult.
Produced by and Copyright, 2012
Phil Hippensteel Associates,
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New Technology Changes
 SVC: scalable video coding.
 DASH: dynamic adaptive streaming.
 H.265 compression
 Half the bandwidth of H.264, one-fourth of
MPEG-2.
 Browser based (pluggin) video
conferencing client.
 Wifi at gigabit speeds (802.11 ac)
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Phil Hippensteel Associates,
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Quote
 “The Internet will never carry high quality
voice and certainly not video”
Phil Hippensteel, 2001
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Phil Hippensteel Associates,
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QUESTIONS?
Produced by and Copyright, 2012
Phil Hippensteel Associates,
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