| A rate based congestion control algorithm in networks with coexisting unicast and multicast sessions |
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| 作者单位： | Qian Dong and Jianying XieSchool of Electronics & Information Technology，Shanghai Jiaotong University，Shanghai 200030，China |
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| 摘 要： | The optimal rate control problem in networks with unicast and multirate multicast sessions is investigated. A penalty function approach is used to solve a convex program formulation of this problem, and then a heuristic rate control algorithm is derived. The algorithm is distributed, and suitable both for source-driven unicast sessions and receiver-driven multicast sessions. To obtain practical viability, the computational burden on core routers as well as end-hosts is kept very low, also is the overhead of network congestion feedback. Simulation results show that the algorithm guarantees TCP (Transmission Control Protocol)-based unicast sessions coexisting with multirate multicast sessions in a fair and friendly manner. It is also shown that various fairness criteria of resource allocation could be achieved by choosing appropriate utility functions, and resource-utilizing efficiencies would be likewise different.
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A rate based congestion control algorithm in networks with coexisting unicast and multicast sessions |
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| Qian Dong,Jianying Xie. A rate based congestion control algorithm in networks with coexisting unicast and multicast sessions[J]. Journal of University of Science and Technology Beijing, 2003, 10(3) |
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| Authors: | Qian Dong Jianying Xie |
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| Abstract: | The optimal rate control problem in networks with unicast and multirate multicast sessions is investigated. A penalty function approach is used to solve a convex program formulation of this problem, and then a heuristic rate control algorithm is derived. The algorithm is distributed, and suitable both for source-driven unicast sessions and receiver-driven multicast sessions. To obtain practical viability, the computational burden on core routers as well as end-hosts is kept very low, also is the overhead of network congestion feedback. Simulation results show that the algorithm guarantees TCP (Transmission Control Protocol)-based unicast sessions coexisting with multirate multicast sessions in a fair and friendly manner. It is also shown that various fairness criteria of resource allocation could be achieved by choosing appropriate utility functions, and resource-utilizing efficiencies would be likewise different. |
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| Keywords: | multicast unicast congestion control rate control fairness |
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