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Comments on "Optimal Resource Allocation in Overlay Multicast"
April 2008 (vol. 19 no. 4)
pp. 572-573
In this comments paper, we revisit the network model introduced in [1]. We discuss the inaccuracy of the model and, to correct the network model, we propose to apply directed capacity constraints for directed flows. Based on comparison of numerical results, we show that the corrected model leads to better accuracy than the original model.

[1] Y. Cui, Y. Xue, and K. Nahrstedt, “Optimal Resource Allocation in Overlay Multicast,” IEEE Trans. Parallel and Distributed Systems, vol. 17, no. 8, pp. 808-823, Aug. 2006.
[2] S. Low and D.E. Lapsley, “Optimization Flow Control, I: Basic Algorithm and Convergence,” IEEE/ACM Trans. Networking, vol. 7, no. 6, Dec. 1999.
[3] K. Kar, S. Sarkar, and L. Tassiulas, “Optimization Based Rate Control for Multirate Multicast Sessions,” Proc. IEEE INFOCOM, 2001.

Index Terms:
Multicast, Algorithm/protocol design and analysis, Nonlinear programming
Jinyao Yan, Martin May, Bernhard Plattner, "Comments on "Optimal Resource Allocation in Overlay Multicast"," IEEE Transactions on Parallel and Distributed Systems, vol. 19, no. 4, pp. 572-573, April 2008, doi:10.1109/TPDS.2007.70767
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