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Network multicast congestion control technology research

Author: PanPan
Tutor: ChenQingHua
School: Nanjing University of Technology and Engineering
Course: Applied Computer Technology
Keywords: Multicast Congestion Control Control parameters The source node
CLC: TP393.06
Type: Master's thesis
Year: 2010
Downloads: 8
Quote: 0
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Abstract


With the rapid development of the global Internet , the proportion of Internet technology - oriented data communication in the communication business volume rising rapidly emerging as some of the new multimedia communication , video telephony, video conferencing , multimedia distance education . In these applications , when a node signal is sent to multiple nodes , either repeat the point-to-point communication , or broadcast , will be a serious waste of network bandwidth , only multicast is the best choice . Multicast technology can not change the current network structure , do not add too much additional investment under the premise of an effective way to save network bandwidth . Multicast technologies used to produce multicast congestion control , more and more people's attention . Multicast congestion control is through the use of mathematical formulas to the model of the algorithm by means of nonlinear dynamics and optimal control theory , the draw the control source side of the control parameters , and congestion control by analyzing the existing model steady-state and dynamic, to demonstrate the optimal parameters . Finally, the establishment of long - flow model , exponential distribution model and to theoretical calculations network load simulation guidance . Different load conditions to observe the transient response of the branch node buffer possession . The simulation results show that the theoretical calculation source sends out rate and branch node buffer the share of the value of certain guiding significance for the actual network environment . Actual network traffic load should not exceed the maximum rate of the bottleneck node to the network to send ; the branch node buffer possession of the theoretical value is less than the value should be set in the actual network environment .

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