| 基于ECN的单播流与多播流间带宽共享算法 |
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| 引用本文： | 杨明,张福炎.基于ECN的单播流与多播流间带宽共享算法[J].计算机科学,2003,30(10):109-112. |
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| 作者姓名： | 杨明 张福炎 |
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| 作者单位： | 1. 南京大学计算机科学系,南京,210093;解放军理工大学,南京,210007
2. 南京大学计算机科学系,南京,210093 |
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| 基金项目： | 国家自然科学基金(项目编号60103013)，江苏省自然科学基金(项目编号BK2001035) |
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| 摘 要： | An ECN-based implementing bandwidth-sharing algorithm for unicast and multicast flows is presented.The algorithm uses a bandwidth allocation strategy to give an incentive to multicast flows in bandwidth allocation according to algorithm of the number of receivers, and to assure the unicast flows get their bandwidth shares fairly.Provided best-effort networks, an ECN-based congestion control algorithm is used to implement differentiated service in bandwidth allocation between unicast flows and multicast flows. In implementation, we solve the problems such asreceiver‘s number estimation, the RTT estimation and compromise between convergence and stability.The simulation results show that the algorithm can implement bandwidth sharing for TCP flows and multicast flows. Atthe same time, the algorithm not only allocates more bandwidth to multicast flows, but promises TCP flows to get their fair bandwidth share.
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| 关 键 词： | Internet 资源分配机制 网络管理 ECN 单播流 多播流 带宽共享算法 |
An ECN-Based Bandwidth Sharing Algorithm for Unicast and Multicast Flows |
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| YANG Ming ZHANG Fu-Yan.An ECN-Based Bandwidth Sharing Algorithm for Unicast and Multicast Flows[J].Computer Science,2003,30(10):109-112. |
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| Authors: | YANG Ming ZHANG Fu-Yan |
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| Abstract: | An ECN-based implementing bandwidth-sharing algorithm for unicast and multicast flows is presented. The algorithm uses a bandwidth allocation strategy to give an incentive to multicast flows in bandwidth allocation according to algorithm of the number of receivers, and to assure the unicast flows get their bandwidth shares fairly. Provided best-effort networks, an ECN-based congestion control algorithm is used to implement differentiated service in bandwidth allocation between unicast flows and multicast flows. In implementation, we solve the problems such as receiver's number estimation, the RTT estimation and compromise between convergence and stability. The simulation results show that the algorithm can implement bandwidth sharing for TCP flows and multicast flows. At the same time, the algorithm not only allocates more bandwidth to multicast flows, but promises TCP flows to get their fair bandwidth share. |
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| Keywords: | Bandwidth sharing Multicast ECN |
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