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    Electrical and Computer Engineering Department

    ECE Colloquium


    ECE Colloquium, March 14th at 10:00am, in the ECE Conference Room (Bossone 302)

    Impact of Core and Access Network Impairments on IPTV SLAs

    by Dr. Ali Begen

    Abstract: In this talk, we present the video technologies developed at Cisco in the service provider space, including Content Delivery Systems (CDS), Video-on-Demand (VoD) and IP Television (IPTV). We illustrate the problems experienced during the video transport and distribution in core and access networks with examples. We discuss several techniques for improving network reconvergence times and reducing the network loss as well as their performance/cost trade-offs and their impact on IPTV Quality of Experience (QoE).

    Bio: Ali C. Begen is a Software Engineer in Video and Content Networking Research and Advanced Development Group at Cisco in San Jose, CA, where he participates in the video transport and distribution projects. He received his Ph.D. degree in Electrical and Computer Engineering from Georgia Tech in 2006. His dissertation focused on networked entertainment, multimedia transport protocols and content distribution.

    Dr. Begen received the Best Student-paper Award at IEEE ICIP 2003 for his paper "Rate-distortion optimized on-demand media streaming with server diversity." In 2008, he received the Most-cited Paper Award with his paper "Multi-path selection for multiple description video streaming over overlay networks," from Elsevier Signal Processing: Image Communication. Dr. Begen is a member of the IEEE and ACM, and currently the Local Chair for IEEE Int. Conf. Semantic Computing (ICSC) 2008.