NDLI: A new goodness of fit test for histograms regarding network traffic packet size process

Content Provider	IEEE Xplore Digital Library
Author	Fras, M. Mohorko, J. Cucej, Z.
Copyright Year	2008
Description	Author affiliation: Fac. of Electr. Eng. & Comput. Sci., Univ. of Maribor, Maribor (Fras, M.; Mohorko, J.; Cucej, Z.)
Abstract	Contemporary communication is becoming more and more complex and extensive. Network planners very often use simulations tools for reducing the costs of planning, constructions, and maintenances. Modeling network traffic is also a very important challenge regarding simulation tools, especially the modeling of measured traffic as to which would be the best approximation of measured traffic in real network. This is possible to ensure using the accurate descriptions of two random processes, both of which define network traffic. These two random processes are packet size process and inter-arrival time. In stochastic modeling both of these processes are modeled using probability distributions. The parameters of these distributions are estimated in an empirical manner with the help of histograms regarding measured traffic processes. Any accuracy regarding suitable distribution between distribution and histogram can be evaluated using different tests, such as Kolmogorov-Smirnov or Chi-square. However, during the measurements and modeling of measured network traffic these tests show one weakness in the case of trying to model network traffic, in regard to the best approximation of measured traffic in bit and packet-rates at the same time. So we have developed a new and better goodness of fit test of network traffic, which considers the number of packets and also the packetpsilas size. Using simulations we show, that the use of this new more suitable test leads to better choice regarding distribution when describing a packet size process, which than consequently, also lead to smaller discrepancies between measured and simulated traffic in bit and packet-rates.
Starting Page	345
Ending Page	348
File Size	1500252
Page Count	4
File Format	PDF
ISBN	9781424426805
DOI	10.1109/ATC.2008.4760593
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-06
Publisher Place	Vietnam
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Costs Stochastic processes Telecommunication traffic Size measurement Time measurement Probability distribution Random processes distributions simulations network traffic Histograms Traffic control goodness of fit Testing
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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