Judging the Relevance and worth of ideas part 2.pptx
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PhD Viva
1. Congestion Control for Real-time Interactive Multimedia Streams UCL Computer Science Soo-Hyun Choi 15/12/2010
2. thesis question 2 Is congestion control mechanism useful to interactive real-time multimedia applications? Why congestion control mechanisms are not deployed in such applications?
3. thesis approach Studied available standard – TFRC exhibit some limitations due to the issues around being rate-based Proposed a better option – TFWC meet the same goals as TFRC has aimed, but solve the limitations by re-introducing TCP-like Ack-clock 3 Why not Ack-based?
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5. what TFWC buy? 5 Simpler to implement in a real application i.e., no need to worry about the host’s clocking issues It can be a more feasible option when there is a choice.
6. is CC useful? 6 Overall, YES! as they are able to control the codec’s bit rate dynamically depending upon network status, giving optimal (better) image quality