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Activity Number:
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474
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Type:
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Contributed
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Date/Time:
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Wednesday, August 9, 2006 : 2:00 PM to 3:50 PM
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Sponsor:
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Section on Physical and Engineering Sciences
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| Abstract - #307055 |
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Title:
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Network Tomography Problems
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Author(s):
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Jiangang Fang*+ and Cun-Hui Zhang
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Companies:
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Rutgers University and Rutgers University
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Address:
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55 Prosper Street, New Brunswick, NJ, 08901,
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Keywords:
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network tomography ; traffic matrix estimation ; delay distribution ; deconvolution
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Abstract:
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We discuss two estimation problems based on network data. In the first problem (joint work with Yehuda Vardi and Cun-Hui Zhang), we propose ITGA, an iterative tomogravity algorithm for the estimation of network flow based on link data. We present certain experimental results to demonstrate the potential of ITGA. In the second problem (joint work with Cun-Hui Zhang), we consider nonparametric estimation of delay distribution in general multicast experiments. We study a simple estimator based on observations with small delay in certain paths, and propose an improvement of it with faster convergence rates. The problem is related to deconvolution.
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