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Deliberately Multicasting Multimedia Contents on Multiple Channels for Smart Mobile Terminals Retrieving Efficiently

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7 Author(s)
Shaohua Liu ; Sch. of Electron. Eng., Beijing Univ. of Posts & Telecommun., Beijing, China ; Xu Zhang ; Yinglong Ma ; Tianlu Mao
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The congestion control scheme plays a critical role in the multicast communication. Without a proper congestion control mechanism, multicast protocols would cause unfairness while sharing network bandwidth with other flows. We propose a deliberated congestion control scheme to multicast multimedia contents for smart phones retrieving effectively. Our key idea is to detect the single trip time of packet in receivers at first, and then explicitly inform the sender which corresponding transmission rate is expected. The proposed schema can share bandwidth more fairly with other flows, such as TCP and does not suffer the Drop-to-zero problem. Furthermore, it enables earlier congestion avoidance and higher throughput. With the simulation on the ns-2 network simulator, we show its better performance than the typical ORMCC in terms of the slowest receiver tracking and congestion handling as well as the average throughput, TCP friendliness and drop-to-zero avoidance.

Published in:

Web Information Systems and Mining (WISM), 2010 International Conference on  (Volume:1 )

Date of Conference:

23-24 Oct. 2010