IEEE Globecom 2009 November 30, 2009 Broadband Video Networking Benny Bing Georgia Institute of Technology http://users.ece.gatech.edu/~benny
[email protected] Outline •Introduction to broadband Internet •HD wireless interfaces –802.15 –802.11 –Wireless HD •Broadband video –Switched digital video –Wireless video –H.264 and VC-1 compression standards –Loss resilience and error containment –Video quality assessment –Video transport protocols –Video bandwidth conservation and management –Next-generation video •Summary © 2009 Benny Bing 2 1 Broadband Internet •Economic driver for 21st century –Globally, over 300 million households subscribe to broadband Internet –Expected to increase to 525 million in 2011 •Broadband Internet can bring significant economic/social benefits –Improved healthcare and education to enhanced public-safety programs •Improved healthcare through telemedicine and electronic healthcare records –Can also bring efficiencies by ushering smart grids, smart homes, and smart transportation •Broadband in the U.S. –FCC task force estimates total cost of broadband deployments in the U.S. between $20 billion and $350 billion •Assumes services provided 100 Mbit/s or faster –Actual broadband speeds lag advertised speeds by at least 50% •Possibly more during busy hours •Peak usage hours (e.g., 7 to 10 pm) create network congestion and speed degradation •About 1% of users drive 20% of traffic while 20% of users drive up to 80% of traffic –Much more wireless spectrum needed •Smartphone sales to make up majority of wireless device