| A Dynamic Adaptive Layered Multicast Congestion Control Mechanism |
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| 引用本文： | REN Liyong LU Xianliang WEI Qingsong ZHOU Xu(School of Computer Science and Engineering,UESTC Chengdu 610054 China). A Dynamic Adaptive Layered Multicast Congestion Control Mechanism[J]. 中国电子科技, 2003, 1(1) |
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| 作者姓名： | REN Liyong LU Xianliang WEI Qingsong ZHOU Xu(School of Computer Science and Engineering UESTC Chengdu 610054 China) |
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| 作者单位： | School of Computer Science and Engineering，UESTC Chengdu 610054 China |
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| 基金项目： | Supported by the Youth Science and Technology Foundation of UESTC(No.YF020803)and National Defense Prestudy Foundation(No.51406070201DZ0211). |
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| 摘 要： | To solve the problem that most of existing layered multicast protocols cannot adapt todynamic network conditions because their layers are coarsely granulated and static,a new congestioncontrol mechanism for dynamic adaptive layered multicast(DALM) is presented.In this mechanism,anovel feedback aggregating algorithm is put forward,which can dynamically determine the number oflayers and the rate of each layer,and can efficiently improve network bandwidth utilization ratio.Additionally,because all layers is transmitted in only one group,the intricate and time-consuminginternet group management protocol(IGMP) operations,caused by receiver joining a new layer orleaving the topmost subscribed layer,are thoroughly eliminated.And this mechanism also avoids otherproblems resulted from multiple groups.Simulation results show that DALM is adaptive and TCPfriendly.
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A Dynamic Adaptive Layered Multicast Congestion Control Mechanism |
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| REN Liyong,Lu Xianliang,Wei Qingsong,ZHOU Xu. A Dynamic Adaptive Layered Multicast Congestion Control Mechanism[J]. Journal of Electronic Science Technology of China, 2003, 1(1) |
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| Authors: | REN Liyong Lu Xianliang Wei Qingsong ZHOU Xu |
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| Abstract: | To solve the problem that most of existing layered multicast protocols cannot adapt todynamic network conditions because their layers are coarsely granulated and static,a new congestioncontrol mechanism for dynamic adaptive layered multicast(DALM) is presented.In this mechanism,anovel feedback aggregating algorithm is put forward,which can dynamically determine the number oflayers and the rate of each layer,and can efficiently improve network bandwidth utilization ratio.Additionally,because all layers is transmitted in only one group,the intricate and time-consuminginternet group management protocol(IGMP) operations,caused by receiver joining a new layer orleaving the topmost subscribed layer,are thoroughly eliminated.And this mechanism also avoids otherproblems resulted from multiple groups.Simulation results show that DALM is adaptive and TCPfriendly. |
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| Keywords: | dynamic layered multicast congestion control TCP friendly aggregate algorithm |
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